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Python tutorial in Hindi 28 : List part 4 ( index , reverse , sort method , sorted function)
 
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Python tutorial in Hindi : List part 4 ( index , reverse , sort method , sorted function) Notes - Coming soon !
Views: 10131 Harshit vashisth
How to Sort a Python Dictionary By Value or Key!
 
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Sentdex.com Facebook.com/sentdex Twitter.com/sentdex How to sort a dictionary within python, by key or value, even though the critics say it is not possible!
Views: 40511 sentdex
What do I need to know about the pandas index? (Part 1)
 
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The DataFrame index is core to the functionality of pandas, yet it's confusing to many users. In this video, I'll explain what the index is used for and why you might want to store your data in the index. I'll also demonstrate how to set and reset the index, and show how that affects the DataFrame's shape and contents. SUBSCRIBE to learn data science with Python: https://www.youtube.com/dataschool?sub_confirmation=1 JOIN the "Data School Insiders" community and receive exclusive rewards: https://www.patreon.com/dataschool == RESOURCES == GitHub repository for the series: https://github.com/justmarkham/pandas-videos "loc" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.loc.html "set_index" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.set_index.html "reset_index" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.reset_index.html Indexing and selecting data: http://pandas.pydata.org/pandas-docs/stable/indexing.html == LET'S CONNECT! == Newsletter: https://www.dataschool.io/subscribe/ Twitter: https://twitter.com/justmarkham Facebook: https://www.facebook.com/DataScienceSchool/ LinkedIn: https://www.linkedin.com/in/justmarkham/
Views: 47636 Data School
How do I sort a pandas DataFrame or a Series?
 
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pandas allows you to sort a DataFrame by one of its columns (known as a "Series"), and also allows you to sort a Series alone. The sorting API changed in pandas version 0.17, so in this video, I'll demonstrate both the "old way" and the "new way" to sort. I'll also show you how to sort a DataFrame by multiple columns at once! SUBSCRIBE to learn data science with Python: https://www.youtube.com/dataschool?sub_confirmation=1 JOIN the "Data School Insiders" community and receive exclusive rewards: https://www.patreon.com/dataschool == RESOURCES == GitHub repository for the series: https://github.com/justmarkham/pandas-videos Changes to sorting API in pandas 0.17: http://pandas.pydata.org/pandas-docs/stable/whatsnew.html#changes-to-sorting-api DataFrame "sort_values" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.sort_values.html Series "sort_values" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.sort_values.html DataFrame "sort" documentation (deprecated): http://pandas.pydata.org/pandas-docs/version/0.17.0/generated/pandas.DataFrame.sort.html Series "order" documentation (deprecated): http://pandas.pydata.org/pandas-docs/version/0.17.0/generated/pandas.Series.order.html == LET'S CONNECT! == Newsletter: https://www.dataschool.io/subscribe/ Twitter: https://twitter.com/justmarkham Facebook: https://www.facebook.com/DataScienceSchool/ LinkedIn: https://www.linkedin.com/in/justmarkham/
Views: 43576 Data School
Aulas Python - 031 - Listas: Métodos pop, index, insert, sort, clear e copy
 
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Finalizando os métodos que podemos usar com listas São eles pop(remove um elemento no índice indicado e retorna esse elemento), index(retorna o primeiro índice da lista cujo elemento é igual ao selecionado), insert (insere um elemento x na posição selecionada), clear (apaga todos os elementos da lista), e copy(cria uma cópia com memória independente na copiada). Bibliografia: Métodos de Listas - https://www.dropbox.com/sh/t0lvoxb2fxfhctx/AAAIqWzVtCR-EXS2ye-Q5G32a/Bibliografia/M%C3%B3dulos/5.1%20-%20Mais%20sobre%20Listas Dropbox: https://www.dropbox.com/sh/t0lvoxb2fxfhctx/oJoHVvCUO4
Views: 13842 Ignorância Zero
Lists and Using List Index in Python (Python for Beginners) | Part 15
 
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Enjoyed my video? Leave a like! GitHub Link: https://github.com/maxg203/Python-for-Beginners Personal Website: http://maxgoodridge.com
Views: 6189 Max Goodridge
Sorting by key in Python
 
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This video demonstrates how to sort a list according to key in Python. Explore my tutorials: https://www.indianpythonista.tech/tutorials/ More awesome topics covered here: WhatsApp Bot using Twilio and Python: http://bit.ly/2JmZaNG Discovering Hidden APIs: http://bit.ly/2umeMHb RegEx in Python: http://bit.ly/2Hhtd6L Introduction to Numpy: http://bit.ly/2RZMxvO Introduction to Matplotlib: http://bit.ly/2UzwfqH Introduction to Pandas: http://bit.ly/2GkDvma Intermediate Python: http://bit.ly/2sdlEFs Functional Programming in Python: http://bit.ly/2FaEFB7 Python Package Publishing: http://bit.ly/2SCLkaj Multithreading in Python: http://bit.ly/2RzB1GD Multiprocessing in Python: http://bit.ly/2Fc9Xrp Parallel Programming in Python: http://bit.ly/2C4U81k Concurrent Programming in Python: http://bit.ly/2BYiREw Dataclasses in Python: http://bit.ly/2SDYQub Exploring YouTube Data API: http://bit.ly/2AvToSW Jupyter Notebook (Tips, Tricks and Hacks): http://bit.ly/2At7x3h Decorators in Python: http://bit.ly/2sdloX0 Inside Python: http://bit.ly/2Qr9gLG Exploring datetime: http://bit.ly/2VyGZGN Computer Vision for noobs: http://bit.ly/2RadooB Python for web: http://bit.ly/2SEZFmo Awesome Linux Terminal: http://bit.ly/2VwdTYH Tips, tricks, hacks and APIs: http://bit.ly/2Rajllx Optical Character Recognition: http://bit.ly/2LZ8IfL Facebook Messenger Bot Tutorial: http://bit.ly/2BYjON6 Facebook: https://www.facebook.com/IndianPythonista/ Github: https://www.github.com/nikhilkumarsingh/ Twitter: https://twitter.com/nikhilksingh97 #python #sort #key
Views: 1126 Indian Pythonista
How to Sort CSV files and lists in Python
 
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This is a tutorial concerning how to sort CSV files and lists easily within python by column. The logic possibly by programming plus the simplicity of being able to sort columns makes python a superb choice for managing CSV documents and lists that are delimited by something. Sentdex.com Facebook.com/sentdex Twitter.com/sentdex
Views: 49443 sentdex
How do I use the MultiIndex in pandas?
 
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One of the most powerful features in pandas is multi-level indexing (or "hierarchical indexing"), which allows you to add extra dimensions to your Series or DataFrame objects. But when should you use a MultiIndex, and how do you create, slice, and merge MultiIndexed objects? In this video, I'll demonstrate: - How to create a Series with a MultiIndex, and how to convert it to a DataFrame - How to select from a Series with a MultiIndex - How to create a DataFrame with a MultiIndex - How to select from a DataFrame with a MultiIndex - How to merge two DataFrames with MultiIndexes WANT TO JOIN MY NEXT WEBCAST? Become a member ($5/month): https://www.patreon.com/dataschool === RELATED RESOURCES === Download the lesson notebook: http://nbviewer.jupyter.org/github/justmarkham/pandas-videos/blob/master/pandas_multiindex.ipynb Using the pandas index (Part 1): https://www.youtube.com/watch?v=OYZNk7Z9s6I&list=PL5-da3qGB5ICCsgW1MxlZ0Hq8LL5U3u9y&index=17 Using the pandas index (Part 2): https://www.youtube.com/watch?v=15q-is8P_H4&list=PL5-da3qGB5ICCsgW1MxlZ0Hq8LL5U3u9y&index=18 Analyzing groups with groupby: https://www.youtube.com/watch?v=qy0fDqoMJx8&list=PL5-da3qGB5ICCsgW1MxlZ0Hq8LL5U3u9y&index=14 Selection and slicing with loc: https://www.youtube.com/watch?v=xvpNA7bC8cs&list=PL5-da3qGB5ICCsgW1MxlZ0Hq8LL5U3u9y&index=19 My full pandas video series: https://www.youtube.com/playlist?list=PL5-da3qGB5ICCsgW1MxlZ0Hq8LL5U3u9y DataCamp course on MultiIndex: https://www.datacamp.com/courses/manipulating-dataframes-with-pandas?tap_a=5644-dce66f&tap_s=280411-a25fc8 DataCamp course on merging: https://www.datacamp.com/courses/merging-dataframes-with-pandas?tap_a=5644-dce66f&tap_s=280411-a25fc8 Tidy data: http://r4ds.had.co.nz/tidy-data.html == LET'S CONNECT! == Newsletter: https://www.dataschool.io/subscribe/ Twitter: https://twitter.com/justmarkham Facebook: https://www.facebook.com/DataScienceSchool/ LinkedIn: https://www.linkedin.com/in/justmarkham/
Views: 13657 Data School
Python Pandas Tutorial: Viewing Data, Sorting, Transposing, Summary Statistics, Columns, and Indices
 
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***PANDAS FUNCTIONALITIES INDEXED BY TIME IN EXPANDED DESCRIPTION VIEW*** In this tutorial, we cover some basic Pandas functionalities, including .head(), .tail(), .values, .columns, .index, .describe, .T, .sort_index(), and .sort_values(). So much of learning about Pandas is learning to debug intelligently, which we discuss in brief at the end of the video. 0:57 df.head() 2:00 df.tail() 2:25 df.values() 3:58 df.columns 4:27 df.index 4:54 df.describe() (for summary statistics) 6:49 df.T (transpose--make sure it's an uppercase T) 7:25 df.sort_index() 9:10 df.sort_values() 10:19 General debugging discussion (somewhat apocryphal) Thank you for watching! I encourage anyone to leave feedback, questions, or constructive criticism in the comments. If you are interested in learning more about Python, you can view lessons in the format of an iPython Notebook: https://github.com/robertgrote/Python-Lessons ►Channel: https://www.youtube.com/channel/UCCX8LYbO8WgS-kisv55CKPg ►Subscribe: https://www.youtube.com/channel/UCCX8LYbO8WgS-kisv55CKPg?sub_confirmation=1 ►Portfolio: https://robertgrote.github.io/ ►Twitter: https://twitter.com/robertdgrote
Views: 3169 TechLessons
Setting Index on DataFrame in Python using Pandas
 
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In this video, we are gonna look how to set index on DataFrame using Pandas using Python
Views: 1313 siddhesh kadam
Python script to print index of all occurrence of given element in a given list
 
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https://premium.mysirg.com https://mysirg.com http://saurabhshuklaclasses.com Like, Comments, Share and SUBSCRIBE visit www.mysirg.com for all FREE videos
Views: 5755 MySirG.com
List index in Python 0 .. 1 .. 2
 
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Lists index in Python starts with 0 How to print a specific value from a list Follow Us ------------- Facebook Page: https://facebook.com/reach0star Website: http://reach4star.blogspot.com Twitter: http://twitter.com/reach0star Personal Email: [email protected] Fb Account: http://facebook.com/mabdelrady26
Views: 156 Reach Star
Python tutorial in Hindi 28  List part 4  index , reverse , sort method , sorted function
 
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. If you never learned programming before this is best step to start this is beginner step by step tutorials of python language from very basics to very advance topics we will build our own apps in this course so stay with these videos I'm pretty sure that these videos will help you .. #elearning229 thank you this is 100 % free tutorials so please subscribe my channel python video tutorial series python tutorial python video tutorial for beginners free download python youtube api python programming python programming for the absolute beginner learn python python videos
Views: 3 e Learning
What do I need to know about the pandas index? (Part 2)
 
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In part two of our discussion of the index, we'll switch our focus from the DataFrame index to the Series index. After discussing index-based selection and sorting, I'll demonstrate how automatic index alignment during mathematical operations and concatenation enables us to easily work with incomplete data in pandas. SUBSCRIBE to learn data science with Python: https://www.youtube.com/dataschool?sub_confirmation=1 JOIN the "Data School Insiders" community and receive exclusive rewards: https://www.patreon.com/dataschool == RESOURCES == GitHub repository for the series: https://github.com/justmarkham/pandas-videos "set_index" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.set_index.html "value_counts" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.value_counts.html "sort_values" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.sort_values.html "sort_index" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.sort_index.html "Series" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.html "concat" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.concat.html Indexing and selecting data: http://pandas.pydata.org/pandas-docs/stable/indexing.html == LET'S CONNECT! == Newsletter: https://www.dataschool.io/subscribe/ Twitter: https://twitter.com/justmarkham Facebook: https://www.facebook.com/DataScienceSchool/ LinkedIn: https://www.linkedin.com/in/justmarkham/
Views: 25452 Data School
25-List inbuilt methods in python part-1 | sort,index,reverse function in python Hindi
 
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Hello friends in this video we will talk about list and list methods in python, we will look at reverse, sort, index, del in list. To learn Arduino, Programming, Python, Automation in python, Hacking, Linux, web design and more you can visit my website techievivek.in:- http://techievivek.in If you like the video please feel free to like and subscribe my channel. Visit my website:-http://techievivek.in Visit Social Blog:-http://aritridas.com Follow me on instagram:-https://instagram.com/arivek07 Follow me on Facebook:-https://facebook.com/techievivek
Views: 342 Techie Vivek
Python Tutorial: Reindexing DataFrames
 
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Second video of the first chapter of our course: Merging DataFrames with pandas by Dhavide Aruliah. First chapter free: https://www.datacamp.com/courses/merging-dataframes-with-pandas As a Data Scientist, you'll often find that the data you need is not in a single file. It may be spread across a number of text files, spreadsheets, or databases. You want to be able to import the data of interest as a collection of DataFrames and figure out how to combine them to answer your central questions. This course is all about the act of combining, or merging, DataFrames, an essential part of any working Data Scientist's toolbox. You'll hone your pandas skills by learning how to organize, reshape, and aggregate multiple data sets to answer your specific questions. Now we can import many files into individual DataFrames, let's investigate sharing information between DataFrames using their Indexes. This is essential for combining DataFrames later, as Indexes are the means by which DataFrame rows are labelled. Let's make a brief note on terminology. The plural of "index" in English can be indexes or indices; both are acceptable. Let's adopt the convention of using indices as the plural of index when referring to individual labels within an Index data structure. By contrast, we can use indexes as the plural of index with reference to many Index data structures associated with several Pandas Series or DataFrames. This is not a standard convention, but it helps us resolve ambiguity in thinking about, say, sets of indices within many indexes. To start, let's load two DataFrames of temperature data recorded from Pittsburgh in 2013. For both calls to read_csv(), we use the index_col argument to specify which column becomes the DataFrame Index ('Month' in both cases). Remember, the Index is a privileged column in Pandas providing convenient access to Series or DataFrame rows. We can examine our DataFrames w_mean & w_max more closely. The Mean TemperatureF & Max TemperatureF columns are respectively the average & maximum daily temperatures (in Fahrenheit) observed during three-month intervals or quarters. For both DataFrames, the column Month is the DataFrame Index. The month listed in each Index row is the first month of each quarter. By virtue of how the CSV files are stored, the Index of w_mean is in alphabetical order while the Index of w_max is in chronological order; the former gives a distorted sense of time-dependent trends. The DataFrame Indexes are accessed directly with the .index attribute. Both w_mean & w_max have Indexes of type object because the index labels are strings. The Pandas type() function shows us the data type of the Index. We define a list called ordered to impose a deliberate ordering for the Index labels of w_mean. The DataFrame .reindex() method creates a new DataFrame w_mean2 with the same data as w_mean but with a new row ordering according to the input list ordered. We can see that w_mean2 has the desired chronological ordering. The original alphabetically-ordered DataFrame can be recovered with the DataFrame .sort_index() method. Pandas Index labels are typically sortable data, such as numbers, strings, or datetimes. The input argument to the .reindex() method can also be another DataFrame Index. For instance, here, we use the Index from w_max to reindex w_mean in chronological order. When a suitably indexed DataFrame is available, the reindex() method spares us having to create a list manually or having to sort the Index. The specific Index labels provided to the .reindex() method are important. For instance, if we invoke .reindex() again using an input list containing a label that is not in the original DataFrame Index (Dec in this case), an entirely new row is inserted & filled with the null value NaN or not-a-number. We can also use .reindex() to see where DataFrame rows overlap. For instance, here, we reindex w_max with the index of w_mean3 showing that w_max does not have a row labelled Dec either. Using .dropna() removes entire rows in which null values occur. This is a common first step when merging DataFrames. Finally, we should realize that order counts. That is, w_max.reindex(w_mean.index) is not the same as w_mean.reindex(w_max.index). The latter fixes the row order as desired in w_mean; the former replicates the misleading alphabetical row order in w_max; this is likely not desired. Try reindexing some DataFrames now in the exercises.
Views: 4572 DataCamp
Python Tutorial 32 - String Indexing and Negative Indexes
 
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Donate!: http://bit.ly/DonateCTVM2. This video will introduce the concept of string indexing. String indexes assign an index number to each character within a string. I will teach you the easiest way to think of indexes. Have some lemonade! More content: http://CalebCurry.com Courses for Download: http://www.udemy.com/u/calebcurry/ Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://Twitter.com/calebCurry Subscribe (it's free!): http://bit.ly/PqPyvH Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 2419 Caleb Curry
Chapter 18: Swapping Values in a Python Array
 
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Describes the process to swap two values in a Python array. From http://cs.simpson.edu/cmsc150/index.php?chapter=sorting
Views: 12988 Professor Craven
Python : List Index() , count() , sort() and reverse() (Part 4)
 
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A list is a data structure in Python that is a mutable, or changeable, ordered sequence of elements. Python Core ------------ Video in English https://goo.gl/df7GXL Video in Tamil https://goo.gl/LT4zEw Python Web application ---------------------- Videos in Tamil https://goo.gl/rRjs59 Videos in English https://goo.gl/spkvfv Python NLP ----------- Videos in Tamil https://goo.gl/LL4ija Videos in English https://goo.gl/TsMVfT Artificial intelligence and ML ------------------------------ Videos in Tamil https://goo.gl/VNcxUW Videos in English https://goo.gl/EiUB4P Linked list in Tamil : https://goo.gl/11n2WW Linked list in English : https://goo.gl/GgfkmB YouTube channel link www.youtube.com/atozknowledgevideos Website http://atozknowledge.com/ Technology in Tamil & English
Views: 152 atoz knowledge
Python - Dizi Methodlar (Append, Insert, Pop, Remove, Index, Sort, Reverse, Extend)
 
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Python dizilerde append, insert, sort, reverse, index, pop ve remove methodlarını anlattım. For Döngüsü - https://youtu.be/-odn-ZYC2x8 Mantıksal Operatörler - https://youtu.be/s9aOY74knt0 Dizi Methodlar (Append, Insert, Pop, Remove, Index, Sort, Reverse, Extend) - https://youtu.be/gnrW57QcvbE Veri Türleri ve (dönüştürme) - https://youtu.be/qm7Rc-IEBys Dosyaya Metin Ekleme (Write, Append) - https://youtu.be/vihM35-2JV8 Dosyadan Bir Satır Okuma (Enumerate, Splitlines) - https://youtu.be/TZZO9vxIHxQ Alan Bulma (Raw_input, Format) - https://youtu.be/RUvpfMzYQHo Try: Except: Else: (Hata Kontrölü) - https://youtu.be/pLMt99OAHuE Klasörden Dosya Taşıma (mv, Listdir, Endswith) - https://youtu.be/-S6SaxDktkY Forum Sitesinden Son Iletiyi Çekme (Urllib, UrlOpen) - https://youtu.be/Hw46nPiCHjs Xml Data Okuma - https://youtu.be/k65kdSWp_-U String Methodlar (Startswith ve Endswith) - https://youtu.be/RT1mav3_TIg String Methodlar (Index, Format, Join, Swapcase) - https://youtu.be/P5ZtzzIp488 String Methodlar (Count, Strip, Split,Title, IsTitle, Upper, Lower) - https://youtu.be/4HI1_eTFiP0 String Methodlar (Replace, Find, SplitLines) - https://youtu.be/taW3iqLhcL0 Dosyadan Bir Satır Silme - https://youtu.be/fKIkhar2rd8 Sys Modülü (argv, platform, exit) - https://youtu.be/VeL2XhGLW-s Random Modülü- https://youtu.be/HaaxgZOjpc0 Internetten Dosya Indirme (UrlLib.Request) - https://youtu.be/4_lJ2IHI1PA
Python Tutorial for Beginners 17 - Python Slice and Negative index
 
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In this video I am going to show How to use Slice function or slicing with Python Collections. Also I am going to show how to use Negative index with Python Collections. So What is Python Slice? A slize is a span of items that are taken from a sequence List slicing format: list[start : end: step]. Span is a list containing copies of elements from start up to, but not including, end If start not specified, 0 is used for start index. If end not specified, len(list) is used for end index. Slicing expressions can include a step value and negative indexes relative to end of list. And What is Negative Indexing In Python: I a Python Collection such as Lists, Strings, Tuples, Bytes .. we can refer to an element by a negative index representing how far it is from the end. example # +---+---+---+---+---+---+ # | P | y | t | h | o | n | # +---+---+---+---+---+---+ # 0 1 2 3 4 5 ---- Positive Index # -6 -5 -4 -3 -2 -1 ---- Negative Index #PythonTutorialforBeginners #ProgrammingKnowledge #LearnPython #PythonCourse -------------------Online Courses to learn---------------------------- Blockchain Course - http://bit.ly/2Mmzcv0 Big Data Hadoop Course - http://bit.ly/2MV97PL Java - https://bit.ly/2H6wqXk C++ - https://bit.ly/2q8VWl1 AngularJS - https://bit.ly/2qebsLu Python - https://bit.ly/2Eq0VSt C- https://bit.ly/2HfZ6L8 Android - https://bit.ly/2qaRSAS Linux - https://bit.ly/2IwOuqz AWS Certified Solutions Architect - https://bit.ly/2JrGoAF Modern React with Redux - https://bit.ly/2H6wDtA MySQL - https://bit.ly/2qcF63Z ----------------------Follow--------------------------------------------- My Website - http://www.codebind.com My Blog - https://goo.gl/Nd2pFn My Facebook Page - https://goo.gl/eLp2cQ Google+ - https://goo.gl/lvC5FX Twitter - https://twitter.com/ProgrammingKnow Pinterest - https://goo.gl/kCInUp Text Case Converter - https://goo.gl/pVpcwL -------------------------Stuff I use to make videos ------------------- Stuff I use to make videos Windows notebook – http://amzn.to/2zcXPyF Apple MacBook Pro – http://amzn.to/2BTJBZ7 Ubuntu notebook - https://amzn.to/2GE4giY Desktop - http://amzn.to/2zct252 Microphone – http://amzn.to/2zcYbW1 notebook mouse – http://amzn.to/2BVs4Q3 ------------------Facebook Links ---------------------------------------- http://fb.me/ProgrammingKnowledgeLearning/ http://fb.me/AndroidTutorialsForBeginners http://fb.me/Programmingknowledge http://fb.me/CppProgrammingLanguage http://fb.me/JavaTutorialsAndCode http://fb.me/SQLiteTutorial http://fb.me/UbuntuLinuxTutorials http://fb.me/EasyOnlineConverter
Views: 7103 ProgrammingKnowledge
Pandas with Python 2.7 Part 4 - CSV column manipulation
 
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In part 4 of the Pandas with Python 2.7 series, we cover the notion of column manipulation with CSV files. Pandas loads our data as objects, which then makes manipulating them extremely simple, while keeping the processing speed very robust. So here, we see how we can move columns around, remove them, add them, and even perform some basic operations soon. Sample code for the series: http://pythonprogramming.net/python-2-7-pandas-data-analysis/ Pandas tutorial series: https://www.youtube.com/playlist?list=PLQVvvaa0QuDfHt4XU7vTm22xDegR0v0fQ http://seaofbtc.com http://sentdex.com http://hkinsley.com https://twitter.com/sentdex Bitcoin donations: 1GV7srgR4NJx4vrk7avCmmVQQrqmv87ty6
Views: 40664 sentdex
The Python index() method and exceptions
 
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Introduces the concept behind exceptions in Python and shows how this is used by the index() method.
Views: 4439 John Philip Jones
Python: List index out of range
 
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Discusses how to debug the list index out of range error based on some examples
Views: 9085 LearningNinja
Sorting in Python  ||  Learn Python Programming  (Computer Science)
 
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Sorting is a fundamental task in software engineering. In Python, there are a variety of ways to sort lists, tuples, and other objects. Today we talk about the sort() method which is an in-place algorithm for sorting lists. We also cover the sorted() function which can be used on more objects, and creates a sorted copy, leaving the original object unchanged. We were able to make this Python video with the help of our Patrons on Patreon! We would like to recognize the generosity of our VIP Patrons Matt Peters, Andrew Mengede, Martin Stephens, and Markie Ward. Thank you so much for helping us continue our work! ➢➢➢➢➢➢➢➢➢➢ To​ ​help​ us continue making videos,​ ​you​ ​can​ ​support​ Socratica at: ​Patreon​: https://www.patreon.com/socratica Socratica Paypal: https://www.paypal.me/socratica We also accept Bitcoin! :) Our​ ​address​ ​is: 1EttYyGwJmpy9bLY2UcmEqMJuBfaZ1HdG9 Thank​ ​you!! ➢➢➢➢➢➢➢➢➢➢ If you’d like a reference book, we recommend “Python Cookbook, 3rd Edition” from O’Reilly: http://amzn.to/2sCNYlZ The Mythical Man Month - Essays on Software Engineering & Project Management http://amzn.to/2tYdNeP ➢➢➢➢➢➢➢➢➢➢ You​ ​can​ ​also​ ​follow​ ​Socratica​ ​on: -​ ​Twitter:​ ​@socratica -​ ​Instagram:​ ​@SocraticaStudios -​ ​Facebook:​ ​@SocraticaStudios ➢➢➢➢➢➢➢➢➢➢ Python instructor: Ulka Simone Mohanty (@ulkam on Twitter) Written & Produced by Michael Harrison (@mlh496 on Twitter)
Views: 72664 Socratica
How to Find Position in List (Index) | Python Tutorial | ProgrammerParker
 
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How to Find Position in List (Index) | Python Tutorial | ProgrammerParker
Views: 58 Programmer Parker
Python Tutorial: How To Use The List Index Method in Python
 
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Python 3.7 Version - https://youtu.be/_zZcivsR3nQ In this Python tutorial, we look at how to find the index position of a object in a list using the list index method in Python.
Views: 4712 Master Code Online
66 - List Methods in Python | Index Count Sort Reverse and Join in Python
 
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List Methods Index Count Sort Reverse and Join Working with List in Python. How to use list variable in python 🎬PLAYLIST OF THIS COURSE:- 🔷https://www.youtube.com/playlist?list=PLZ1XLpCapXpgfpPDcyFg2fuA5T6kMeUTg ----------------- 👉VISIT OUR WEBSITE👈 👉https://www.tutorialsharp.com/ --- ✔Really Really Understand Object Oriented programming in Python ✔Learn testing and TDD (Test Driven Development) with Python ✔Write your own Decorators and higher order functions ✔Write your own Generators and other Iterators ✔Confidently work with Lambdas! ✔Master tricky topics like Multiple Inheritance and Polymorphism ✔Build games with Python ✔Build larger projects that span across multiple files ✔Work with all the Python data structures: lists, dictionaries, sets, tupleVs, and more! ✔Become an expert at list and dictionary comprehensions ✔Master built-in python functions like zip and filter ✔Handle errors and debug code ✔Write your own custom modules ✔Work with files, including CS ✔Learn all the coding fundamentals in Python! ✔Learn about all of the latest features in Python 3.6 ✔Use Python to create an automated web crawler and scraper ✔Make complex HTTP requests to APIs using Python ✔Master the quirks of Python style and conventions 🔴SUBSCRIBE THE CHANNEL HERE : https://www.youtube.com/tutorialsharp?sub_confirmation=1 ______________ Donate Some Money as your Love❤ to us Paytm Link: https://p-y.tm/RQy-6uq ---------------- 📩SUBSCRIBE TO MY EMAIL LIST FOR MORE COURSES AND FREE TUTORIALS https://mailchi.mp/ec75e185aff8/tutorialsharp ----------- Python is a widely used general-purpose, high-level programming language. Its design philosophy emphasizes code readability, and its syntax allows programmers to express concepts in fewer lines of code than would be possible in other languages. The language provides constructs intended to make clear programs possible on both a small and large scale. --------- FOLLOW ME Iinstagram: https://www.instagram.com/tutorialsharp/ #ListInPython #ListVariable #ListMethod #pythontutorial #LearnPython #pythontutorialforbeginners Python tutorial for beginners, python tutorial, python basic, python coding, python crash course, python for beginners, python object oriented programming, python programming, python 3,
Views: 20 Tutorial Sharp
How to Compare Arrays and Indices in Python 3.4.3
 
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Hi guys! This is my first go at uploading some of my work! I just got done with a really difficult project and was excited to share this with you since their doesn't seem to be a lot of stuff on this topic (for Python 3, anyway) I hope you guys enjoy it!
Views: 444 Aaron Roach
Python Pandas Tutorial 22 | How to Process Hierarchical Index
 
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Hi guys...in this python pandas tutorial video I have talked about how you can work with hierarchical index and process the data based on multilevel hierarchies that are present in the pandas series or dataframe. I have mainly discuss how you can rename the index, how you can swap the indexes, how you unstack the index to create a dataframe, how you can select the nested index hierarchies for the selection of data and finally how you can do sum at various level of index hierarchy.
How to remove list items in Python by index and other methods
 
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Views: 9862 Chris Hawkes
Learn Counting Sort Algorithm in LESS THAN 6 MINUTES!
 
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Step-by-step guide to counting sort with a visual example. Counting sort is useful when the range of values each item can take is very small. For example, you can use if if you want to sort 10,000 people according to their age. We can safely assume (for now) that no human is older than 199 years old, so the range of values is very small in this case.
Views: 59759 CS Dojo
Python Basics 6 | Numpy Array | Create | Access | Update | Slice/Index | Basic Operation | Functions
 
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''' Python Basics - Session # 6 Topic to be covered - Numpy in Python 1. What is Numpy 2. Creating Numpy 3. Accessing Numpy elements 4. Updating Numpy 5. Indexing / Slicing in Numpy 6. Basic Operations in Numpy 7. Functions using Numpy mean, max, min, sort, var, std, argmin, argmax, nonzero, where, extract, 8. Broadcasting in Numpy 9. Numpy String Functions 10. Storage Comparision between List and Numpy 11. Processing time comparision between LiSst and Numpy 12. Matrix / Linear Algebra using Numpy 13. Iterations with Numpy 14. Numpy - converting to hexadecimal 15. I/O with Numpy 16. Matplotlib with Numpy Various options to be explored Barplot ''' ############################################################################### # 1. What is Numpy ? ''' 1. Numpy is a library for scientific computing. 2. Numpys stands for Numerical Python. 3. Numpy consists of Multidimensional array objects and it has collection of functions/routines to process those arrays. 4. There are advantages of using Numpy a. Takes less memory as compared to List b. Processing speed of numpy array is much higher. ''' ############################################################################### # 2. How do we create numpy array? import numpy as np x = np.array([1,2,3]) print(x) print(x.dtype) x = np.array([1,2,3.0]) print(x.dtype) print(x) x = np.array([10,20,30,40,50], ndmin = 3) print(x) print(x.size) print(x.shape) ############################################################################### # 3. Accessing Numpy Elements x = np.array([10,20,30,40,50]) print(x[2]) print(x[-1]) print(x[-3]) ############################################################################### # 4. Updating Numpy array print(x) x[2] = 80 print(x) ############################################################################### # 5. Indexing / Slicing in Numpy # Type 1 x = np.arange(10) s = slice(2,9,2) print(x[s]) print(x[slice(0,8,2)]) print(x[slice(1,8,3)]) print(x[0:8:2]) print(x[1:8:3]) x = np.arange(20) y = x[10] print(y) y = x[:10] print(y) y = x[10:] print(y) print(y[2:8]) print(y[2:10:2]) print(y[2:10:3]) # x = np.array([[10,20,30], [40,50,60], [70,80,90]]) print(x) ''' [[10 20 30] ----- 0 [40 50 60] ----- 1 [70 80 90]] ----- 2 ''' ###### print(x[1:]) print(x[2:]) print(x[0:]) print(x[3:]) print(x[:,0]) print(x[:,1]) print(x[:,2]) ############################################################################### # 6. Basic Operations in Numpy x = [10,20,30] y = [30,60,70] print(x + y) print(y / 10) x = np.array([10,20,30]) y = np.array([30,60,70]) print(x+y) print( y / 10) print ( x * 10) ############################################################################### #7. Functions using Numpy # mean, max, min, sort, var, std, argmin, argmax, nonzero, where, extract, Sachin_runs = np.array([110,105,155,0,191,174,0]) print(np.mean(Sachin_runs)) print(np.min(Sachin_runs)) print(np.max(Sachin_runs)) print(np.var(Sachin_runs)) print(np.std(Sachin_runs)) print(np.argmax(Sachin_runs)) print(np.argmin(Sachin_runs)) print(np.nonzero(Sachin_runs)) print(np.where(Sachin_runs GT 120)) condition = (Sachin_runs GT 100) & (Sachin_runs LT 160) print(np.extract(condition, Sachin_runs)) ###############################################################################
QuickTip #259 - Python Tutorial - Sort Dictionary By Index
 
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Python Tutoria - Sort Dictionary By Index |||||||||||||||||Affiliate-Links||||||||||||||||| Amazon-Link: http://amzn.to/1yr6OdD Meine Buchempfehlungen: C#: http://amzn.to/1sW4Mdb Python: http://amzn.to/Zc3T9g CSS: http://amzn.to/1uhO4uy JavaScript: http://amzn.to/1mJNy6n Java: http://amzn.to/1pbGv1z Facebook: https://www.facebook.com/pages/Event-Handler/1495860210672727
Views: 159 Event Handler
Python Training Course - Python List Index
 
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Python Training Course - Python List Index. This python tutorial covers the index() method for a python list. The index() method will give the index of an object in a python list. One thing to remember about the index() method for a python list is that it will only return one value: the first instance of the list object. It will not give the index of later occurrences. My Python Course - https://www.youtube.com/watch?v=Aah3TmR-dHc&list=PLtb2Lf-cJ_AWhtJE6Rb5oWf02RC2qVU-J
Views: 1236 Python Programmer
Insertion Sort in Python
 
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Basic implementation of insertion sort algorithm
Views: 99201 Khan Academy
7- Numpy: Indexing Multi Dimensional Arrays
 
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Visit my personal web-page for the Python code: http://www.brunel.ac.uk/~csstnns
Views: 18585 Noureddin Sadawi
Sorting two dimensional lists in Python
 
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How to sort 2d list by the second or third sub item in a lists. Great for making high score tables.
Tuples in Python - index, count, type
 
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Creating Tuples, and listing out Tuple content. Tuple slicing is covered. Finding and counting the items in a Tuple.
Views: 1334 george boole
Indexing 2: inverted index
 
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A search engine represents documents as vectors over the vocabulary. If we arrange all documents as row vectors in a matrix, then the column vectors are inverted lists: for each keyword in our vocabulary they give a list of occurrences of this keyword in all documents.
Views: 26285 Victor Lavrenko
Python Elasticsearch How to Check if the index (indices) exists or not
 
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Python Elasticsearch How to Check if the index (indices) exists or not sudo pip install elasticsearch from elasticsearch import Elasticsearch HOST_URLS = ["http://127.0.0.1:9200"] es_conn = Elasticsearch(HOST_URLS) INDEX_NAME = "school" #Create a new index res = es_conn.indices.create(index=INDEX_NAME, ignore=400) print "==res===", res res = es_conn.indices.get(index=INDEX_NAME) print "==res===", res #Delete Index res = es_conn.indices.delete(index=INDEX_NAME, ignore=[400, 404]) print "==res===", res res = es_conn.indices.exists(index=INDEX_NAME) print "==res===", res
Views: 65 OSPY
Python: Numpy Array Indexing
 
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This video walks through array indexing examples. Array[rowstart:rowend, columnstart:columnend] It also shows how to get the diagonal using np.diag(). This is a Python anaconda tutorial for help with coding, programming, or computer science. These are short python videos dedicated to troubleshooting python problems and learning Python syntax. For more videos see Python Help playlist by Rylan Fowers. ✅Subscribe: https://www.youtube.com/channel/UCub4qT8Sgm7ytZsO-jLL4Ow?sub_confirmation=1 📺Channel: https://www.youtube.com/channel/UCub4qT8Sgm7ytZsO-jLL4Ow? ▶️Watch Latest Python Content: https://www.youtube.com/watch?v=myCPgAO9BgQ&list=PLL3Qv26_SCsGWTF5PRaWUY0yhURFvco7L ▶️Watch Latest Other Content: https://www.youtube.com/watch?v=2YfQsLd2Ups&list=PLL3Qv26_SCsFVXXdsxOSB00RSByLSJICj&index=1 🐦Follow Rylan on Twitter: https://twitter.com/rylanpfowers The creator studies Applied and Computational Mathematics at BYU (BYU ACME or BYU Applied Math) and does work for the BYU Chemical Engineering Department ARRAY INDEXING Array indexing is very important to know. I will introduce it here. We import numpy as np, since we will be creating arrays For this example I will make a random matrix A with numbers between -5, and 5.we don’t need to import random. We will make it (3,3) And we will change it to ints really quick So here is A Let’s bring it up again so we can have it for reference. First if you want any entry in the array simply type its corresponding row and column index location with a comma separating. Don’t forget that when coding, the first number is always 0. So we follow row position 2, and column position 1 which gives us our -1 Now we type 1 colon. This starts from the 1 position row, and the colon tells it to go to the end. So this will be the 1 position row to the last position row. Let’s compare this to colon 1. This does all the rows up to but not including the row in position one. So it will just print out the row in position 0. Next let’s bring up A again for reference 1 colon, comma 1. After the comma it references columns. So this is the 1 position row to the end towards the bottom and taken specifically from the 1 position column Next we have 1 comma 1 colon. This will be the row in the second position, and then the column from the first position to the end. Now, we do 0 colon comma 1 colon 2. This will take the row in the 0th position to the end, but limit it to only the row in column position 1 up to but not including column position 2. So that will give the middle column, as we see here. Something good to remember for this video when indexing arrays is that rows (or the first numbers in the index) move you up and down and columns (the second numbers in the index) move you left and right lastly I will quickly show you an easy way to get the diagonal of the matrix. np.diag(A) will return an array with the diagonal You can change the index with a keyword argument if you want above or below. For here we have one above Now we will do a negative to go below the diagonal. There you have it, that is an introduction of python numpy array indexing
Views: 419 Rylan Fowers
How to Find the Index of a Python List Item?
 
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Python lists mimic real-life lists, such as shopping lists. Some times it's important to know at what point in your list an element is. We can use the list index function to tell us where an element is located, or let us know if the element does not exist in our list.
Views: 27 PyPros
Python Lists | a complete tutorial
 
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This video tutorial is on python lists and how to work with them. contents: 0:12-Introduction to list. 1:48-Different methods to create lists. 1:50-Empty List. 2:00-List of strings. 2:10-List of numbers. 2:18-List of numbers using list comprehension (using for loop). 2:44-List of numbers using range. 2:55-Creating a list of even numbers less than 10 using list comprehension. 3:18-Creating a list of even numbers less than 10 using range. 3:36-Creating List from comma separated strings. 4:04-Put all characters in a string to list. 4:30-Put each digit in an integer to list. 4:53-Convert the dictionary key or value to list. 5:49-Built-in functions for lists in python. 5:57-list.append() to append a single element at the end of the list. 7:00-list.extend() to append each element of one list to another list. 7:40-list.insert() used to insert an item at a particular location. 8:25-list.index to fetch the index of an item in the list. 9:08-list.remove method to remove an element from the list. 9:35-list.pop method which removes and returns us the element from the list. 10:23-list.sort to sort the list either in ascending or descending order. 11:00-list.reverse method is used to reverse the list items. 11:27-len method to get the length or number of items in a list. 11:53-min and max functions to find the minimum or maximum value in a list. 12:26-list.count method to find how many time an item appears in the list. 12:58-list.clear method to remove all the elements in the list. 13:20-To check if an item exists in the list. 13:52-indexing the python list. 14:00-fetch the first element. 14:27-get the last item. 15:04-Slicing (fetching specific portion of our list) examples. 15:56-slicing with increment or skipping. 16:45-Slicing in reverse order. 17:25-reversed function to iterate a list in reverse order. 18:28-Slice Assignment to insert or replace items of one list inside another list at a particular location. 19:25-remove elements using slicing assignment. 19:41-how to copy list, understand why copying a list is tricky. 22:40-copy list using deepcopy. 23:16-for loops on lists. 24:05-join all the contents in the list in to a string. 24:55-convert a list of lists in to a flat list. 25:46-see if list has duplicate elements. 26:40-shift or rotate the list Music: Summer, endless motion from www.bensound.com
Views: 12114 Art of Engineer
How do I select multiple rows and columns from a pandas DataFrame?
 
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Have you ever been confused about the "right" way to select rows and columns from a DataFrame? pandas gives you an incredible number of options for doing so, but in this video, I'll outline the current best practices for row and column selection using the loc, iloc, and ix methods. SUBSCRIBE to learn data science with Python: https://www.youtube.com/dataschool?sub_confirmation=1 JOIN the "Data School Insiders" community and receive exclusive rewards: https://www.patreon.com/dataschool == RESOURCES == GitHub repository for the series: https://github.com/justmarkham/pandas-videos "loc" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.loc.html "iloc" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.iloc.html "ix" documentation: http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.ix.html Summary of the pandas API for selection: https://github.com/pydata/pandas/issues/9595 == LET'S CONNECT! == Newsletter: https://www.dataschool.io/subscribe/ Twitter: https://twitter.com/justmarkham Facebook: https://www.facebook.com/DataScienceSchool/ LinkedIn: https://www.linkedin.com/in/justmarkham/
Views: 89247 Data School
Python: Average Directional Index (ADX) 4 Directional Movement System Calculation
 
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This video teaches you how to calculate the Average Directional Index (ADX) in python, which is used as a part of the Directional Movement System, developed by Welles Wilder. The purpose of this series is to teach mathematics within python. To do this, we will be working with a bunch of the more popular stock indicators used with technical analysis. With most of the indicators, we will first discuss them, their purpose, then teach how to program them into python, then actually display them on a chart. The basic charting application comes from a previous tutorial series, here: http://www.youtube.com/playlist?list=PLQVvvaa0QuDcR-u9O8LyLR7URiKuW-XZq Required files: Sample Code for the actual charting parts: http://sentdex.com/sentiment-analysisbig-data-and-python-tutorials-algorithmic-trading/python-matplotlib-sample-code-charting-stocks-python/ Python: http://python.org Numpy: http://www.lfd.uci.edu/~gohlke/pythonlibs/#numpy Matplotlib: http://matplotlib.org/downloads.html Sentdex.com Facebook.com/sentdex Twitter.com/sentdex
Views: 1390 sentdex
Python TypeError: list indices must be integers, not str
 
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Python TypeError: list indices must be integers, not str
Views: 11719 ATOM
Python Strings,Arrays,splits,index, del, insert 1 of 3
 
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I easily split up the Khan's Quote into a list. I del entries from the List, insert new entries into the List. Thereby improving on the quote. :-)
Views: 419 george boole
How to sort a list in Python
 
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In this short tutorial, you will learn how to sort a list in Python, sort it in reverse order, and how to supply your own comparison with the key argument. Want to learn more? See our courses at https://goo.gl/yb1zdV. Read the documentation for lists here: https://docs.python.org/3/library/stdtypes.html#list Code from video: ***************** company = ['julia', 'erick', 'dillon'] company.sort() company company.sort(reverse=True) company company.sort(reverse=True, key=len) company Connect with us! ***************** https://twitter.com/enthought https://www.facebook.com/Enthought/ https://www.linkedin.com/company/enthought
Views: 1485 Enthought

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