Python Language
- Getting started with Python Language
- Awesome Book
- Awesome Community
- Awesome Course
- Awesome Tutorial
- Awesome YouTube
- *args and **kwargs
- 2to3 tool
- Abstract Base Classes (abc)
- Abstract syntax tree
- Accessing Python source code and bytecode
- Alternatives to switch statement from other languages
- ArcPy
- Arrays
- Asyncio Module
- Attribute Access
- Audio
- Basic Curses with Python
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- ChemPy - python package
- Classes
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- Code blocks, execution frames, and namespaces
- Collections module
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- Comparisons
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- configparser
- Connecting Python to SQL Server
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- Copying data
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- Creating a Windows service using Python
- Creating Python packages
- ctypes
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- Deque Module
- Descriptor
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- Dictionary
- Introduction to Dictionary
- Accessing keys and values
- Accessing values of a dictionary
- All combinations of dictionary values
- Avoiding KeyError Exceptions
- Creating an ordered dictionary
- Creating a dictionary
- Dictionaries Example
- Dictionary with default values
- Iterating Over a Dictionary
- Merging dictionaries
- The dict() constructor
- The trailing comma
- Unpacking dictionaries using the ** operator
- Difference between Module and Package
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- Incompatibilities moving from Python 2 to Python 3
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- Introduction to RabbitMQ using AMQPStorm
- IoT Programming with Python and Raspberry PI
- Iterables and Iterators
- Itertools Module
- JSON Module
- kivy - Cross-platform Python Framework for NUI Development
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- Mutable vs Immutable (and Hashable) in Python
- Neo4j and Cypher using Py2Neo
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- Operator module
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- Pickle data serialisation
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- String representations of class instances: __str__ and __repr__ methods
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- sys
- tempfile NamedTemporaryFile
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- Using loops within functions
- Variable Scope and Binding
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- Virtual environments
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- Web Server Gateway Interface (WSGI)
- Webbrowser Module
- Websockets
- Working around the Global Interpreter Lock (GIL)
- Working with ZIP archives
- Writing extensions
- Writing to CSV from String or List
Python Language Dictionary Creating an ordered dictionary
Example
You can create an ordered dictionary which will follow a determined order when iterating over the keys in the dictionary.
Use OrderedDict from the
collections module. This will always return the dictionary elements in the original insertion order when iterated over.
from collections import OrderedDict
d = OrderedDict()
d['first'] = 1
d['second'] = 2
d['third'] = 3
d['last'] = 4
# Outputs "first 1", "second 2", "third 3", "last 4"
for key in d:
print(key, d[key])
