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1. Top results related to what does dictionary name mean in python programming

   • What does a comma after a variable name mean in python when used to create an animation?

     Top Answer

     Answered Feb 26, 2018 · 7 votes

     ax.plot() returns a tuple which contains only one element. If you assign it without the comma, you just assign the tuple.

     >>> t = (1,)>>> a = t>>> a(1,)

     But if you assign it with the comma, you unpack it.

     >>> t = (1,)>>> a, = t>>> a1

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     1/5

   • What does version name 'cp27' or 'cp35' mean in Python?

     Top Answer

     Answered May 04, 2016 · 48 votes

     If you check out the Python Enhancement Proposal (more commonly known as a PEP), you'll see that the cpN refers to the particular version of Python

     in gensim-0.12.4-cp27-none-win_amd64.whl you can break it apart:

     • 0.12.4 - package version, they may be using semantic versioning
     • cp27 - this package is for CPython. IronPython, Jython, or PyPy will probably be unhappy.
     • none - no feature of this package depends on the python Application Binary Interface, or ABI
     • win_amd64 - this has been compiled for 64-bit Windows. That means that it probably has some code written in C/C++
     • .whl - that means this is a wheel distribution. Which is handy, because it means if you're running CPython 2.7 64-bit on Windows, and assuming you have pip installed, all you have to do to get this package is run: py -2.7 -m pip install --use-wheel gensim (assuming that it's available on pypi, of course). You may need to py -2.7 -m pip install wheel first. But other than that, that should be all it takes.

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     2/5

   • What does the "list name not defined" error mean in python?

     Top Answer

     Answered Jul 31, 2017 · 3 votes

     def add_10(list_num): list_num = [1,2,3] list_add_10 = [] for num in list_num: list_add_10.append(num + 10) print list_add_10

     Your indentation is incorrect. The first four lines of the function should be dedented by four spaces as shown in my answer.

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     3/5

   • What does the use of a list name with an if clause mean in Python?

     Top Answer

     Answered Oct 29, 2020 · 0 votes

     This is simply checking is list is not empty (listname should refer only to the name) and then if it is not empty, it pop's the last element from it.

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     4/5

   • What does "e" in "1e-5" in Python language mean and what is the name of this notation?

     Top Answer

     Answered Jul 17, 2018 · 40 votes

     It is scientific notation. It means 1 × 10−5. In other words, 0.00001.

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     5/5

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2. realpython.com › python-dictsDictionaries in Python – Real Python

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   Python. >>> d = {int: 1, float: 2, bool: 3} >>> d {<class 'int'>: 1, <class 'float'>: 2, <class 'bool'>: 3} >>> d[float] 2 >>> d = {bin: 1, hex: 2, oct: 3} >>> d[oct] 3. However, there are a couple restrictions that dictionary keys must abide by. First, a given key can appear in a dictionary only once.

   • Dictionaries in Python

     Python provides a composite data type called a dictionary,...

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     Test your understanding of Python dictionaries. Python...

3. www.w3schools.com › python › python_dictionariesPython Dictionaries - W3Schools

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   Dictionary. Dictionaries are used to store data values in key:value pairs. A dictionary is a collection which is ordered*, changeable and do not allow duplicates. As of Python version 3.7, dictionaries are ordered. In Python 3.6 and earlier, dictionaries are unordered. Dictionaries are written with curly brackets, and have keys and values:

   Code sample

   thisdict ={

     "brand": "Ford",

     "model": "Mustang",

     "year": 1964

   }...

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4. People also ask

   How do dictionaries work in Python?

   • In Python 3.6 and earlier, dictionaries are unordered. Dictionaries are written with curly brackets, and have keys and values: Create and print a dictionary: Dictionary items are ordered, changeable, and do not allow duplicates. Dictionary items are presented in key:value pairs, and can be referred to by using the key name.

   Python Dictionaries - W3Schools

   www.w3schools.com/python/python_dictionaries.asp

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   How do you access a dictionary in Python?

   • Because Python dictionaries aren’t a sequence data type, we can’t simply access, say, the first item. In order to access a particular value in a Python dictionary, we use a key in the dictionary to access the value. In a Python dictionary, you can have multiple keys. These keys must be: Think of Python dictionaries as, well, dictionaries.

   Python Dictionaries: A Complete Overview • datagy

   datagy.io/python-dictionary/

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   Are dictionaries ordered in Python?

   • As of Python version 3.7, dictionaries are ordered. In Python 3.6 and earlier, dictionaries are unordered. Dictionaries are written with curly brackets, and have keys and values: Create and print a dictionary: Dictionary items are ordered, changeable, and do not allow duplicates.

   Python Dictionaries - W3Schools

   www.w3schools.com/python/python_dictionaries.asp

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   How do I get all the keys from a dictionary in Python?

   • There are two other easy ways to get all the keys from a dictionary: list() returns all the keys in insertion order, while sorted() returns all the keys sorted alphabetically. If you’re running Python 3.9 or later, you can use the newly introduced merging operator for dictionaries:

   Python Dictionary: How To Create And Use, With Examples

   python.land/python-data-types/dictionaries

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5. www.programiz.com › python-programming › dictionaryPython Dictionary (With Examples) - Programiz

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   • Create a Dictionary. We create a dictionary by placing key: value pairs inside curly brackets {}, separated by commas. For example, # creating a dictionary country_capitals = { "Germany": "Berlin", "Canada": "Ottawa", "England": "London" } # printing the dictionary print(country_capitals)
   • Access Dictionary Items. We can access the value of a dictionary item by placing the key inside square brackets. country_capitals = { "Germany": "Berlin", "Canada": "Ottawa", "England": "London" } # access the value of keys print(country_capitals["Germany"]) # Output: Berlin print(country_capitals["England"]) # Output: London.
   • Add Items to a Dictionary. We can add an item to a dictionary by assigning a value to a new key. For example, country_capitals = { "Germany": "Berlin", "Canada": "Ottawa", }
   • Remove Dictionary Items. We can use the del statement to remove an element from a dictionary. For example, country_capitals = { "Germany": "Berlin", "Canada": "Ottawa", }

6. python.land › python-data-types › dictionariesPython Dictionary: How To Create And Use, With Examples

   python.land › python-data-types › dictionaries

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   Jul 14, 2023 · The Python dictionary is one of the language’s most powerful data types. In other programming languages and computer science in general, dictionaries are also known as associative arrays. They allow you to associate one or more keys to values.

7. www.dataquest.io › blog › python-dictionariesPython Dictionaries: A Comprehensive Tutorial (with 52 Code ...

   www.dataquest.io › blog › python-dictionaries

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   Apr 1, 2022 · What Is a Dictionary in Python? A Python dictionary is a data structure that allows us to easily write very efficient code. In many other languages, this data structure is called a hash table because its keys are hashable. We'll understand in a bit what this means. A Python dictionary is a collection of key:value pairs.

8. medium.com › @pythonfundamentals › pythonPython Dictionaries: A Comprehensive Guide with Code ... - Medium

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   Sep 4, 2023 · 1. Understanding Dictionaries. Python dictionaries are unordered collections of key-value pairs, where each key is unique. They are enclosed in curly braces ( {}) and consist of...

9. datagy.io › python-dictionaryPython Dictionaries: A Complete Overview • datagy

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   Dec 10, 2021 · Table of Contents. What are Python Dictionaries? Python dictionaries are container data types, like Python lists. Dictionaries use a key-value pair mapping, allowing you to retrieve a value by looking up its corresponding key. They are very similar to what, in other programming languages, is called an associative array.