135 lines
2.4 KiB
Plaintext
135 lines
2.4 KiB
Plaintext
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Getting started
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===============
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Installation
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-------------
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Have a look at the python_ website.
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.. _python: http://www.python.org
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Hello world
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-----------
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::
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python -c "print 'hello'"
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Opening a python prompt::
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>>> print("hello world")
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hello world
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.. code-block:: python
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:caption: hello.py
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:name: hello-py
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import sys
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name = sys.argv[1]
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print("Hello, {0}".format(name))
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starting a web server::
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python3 -m http.server 8080
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importing a module
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>>> import this
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Beautiful is better than ugly.
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Explicit is better than implicit.
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Simple is better than complex.
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Complex is better than complicated.
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use the builtin help
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>>> help(function)
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Configure your prompt
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---------------------
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Set your path or install a good prompt like `ipython <https://ipython.org/ipython-doc/2/install/install.html>`_
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.. envvar:: PYTHONPATH
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defaults on the current directory
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you can add a path to point to some other library
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put this in your `.bashrc` (under linux), under windows... I don't know:
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::
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export PYTHONPATH:`pwd`
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export PYTHONPATH=$PYTHONPATH:'/usr/share':'/toto/titi/tata'
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alias pyenv='export PYTHONPATH=`pwd`:$PYTHONPATH'
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export PYTHONSTARTUP='/home/gwen/.pystartup'
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.. envvar:: PYTHONSTARTUP
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the pystartup enables us to set the
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- autocompletion
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- the history of the commands
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example of `.pystartup`
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::
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# Store the file in ~/.pystartup, and set an environment variable to point to
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# it, e.g. "export PYTHONSTARTUP=/max/home/itamar/.pystartup" in bash.
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#
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# Note that PYTHONSTARTUP does *not* expand "~", so you have to put in the full
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# path to your home directory.
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import rlcompleter
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import readline
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readline.parse_and_bind("tab: complete")
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import os
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histfile = os.path.join(os.environ["HOME"], ".pyhist")
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try:
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readline.read_history_file(histfile)
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except IOError:
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pass
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import atexit
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atexit.register(readline.write_history_file, histfile)
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del os, histfile
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# enhanced completion
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#import rlcompleter2
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#rlcompleter2.setup()
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Editors
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---------
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IDLE
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https://docs.python.org/3/library/idle.html
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un framework de développement intégré : :term:`IDLE`
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.. glossary::
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IDLE
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IDLE_ is an IDE (Integrated Development Environnement)
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.. _IDLE: http://docs.python.org/3/library/idle.html
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Thonny_
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.. _Thonny: https://thonny.org/
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Otherwise, your preferred editor...
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