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authoryum <yum.food.vr@gmail.com>2023-01-23 14:28:53 -0800
committeryum <yum.food.vr@gmail.com>2023-01-23 14:32:09 -0800
commit9fff496394dcd94c4084694ca96a5e07ab836274 (patch)
treed89b78e16ecb6011bdd74555da79f7a8c1d90752 /FOSS/Python/Dependencies/future-0.18.2/docs/futurize_overview.rst
parent9329d64f991b8b3289af22e4c2eedb09a97c5640 (diff)
package.ps1 now fetches all dependencies
Don't literally check in Python since it looks dodgy (rightfully so). Instead the build script just fetches it. * Update README, simplifying language and documenting other projects
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-The ``futurize`` script passes Python 2 code through all the appropriate fixers
-to turn it into valid Python 3 code, and then adds ``__future__`` and
-``future`` package imports to re-enable compatibility with Python 2.
-
-For example, running ``futurize`` turns this Python 2 code:
-
-.. code-block:: python
-
- import ConfigParser # Py2 module name
-
- class Upper(object):
- def __init__(self, iterable):
- self._iter = iter(iterable)
- def next(self): # Py2-style iterator interface
- return next(self._iter).upper()
- def __iter__(self):
- return self
-
- itr = Upper('hello')
- print next(itr),
- for letter in itr:
- print letter, # Py2-style print statement
-
-into this code which runs on both Py2 and Py3:
-
-.. code-block:: python
-
- from __future__ import print_function
- from future import standard_library
- standard_library.install_aliases()
- from future.builtins import next
- from future.builtins import object
- import configparser # Py3-style import
-
- class Upper(object):
- def __init__(self, iterable):
- self._iter = iter(iterable)
- def __next__(self): # Py3-style iterator interface
- return next(self._iter).upper()
- def __iter__(self):
- return self
-
- itr = Upper('hello')
- print(next(itr), end=' ') # Py3-style print function
- for letter in itr:
- print(letter, end=' ')
-
-
-To write out all the changes to your Python files that ``futurize`` suggests,
-use the ``-w`` flag.
-
-For complex projects, it is probably best to divide the porting into two stages.
-Stage 1 is for "safe" changes that modernize the code but do not break Python
-2.7 compatibility or introduce a dependency on the ``future`` package. Stage 2
-is to complete the process.