britishpaster.blogg.se

1. #Python 2to3 windows batch script example install#
2. #Python 2to3 windows batch script example update#
3. #Python 2to3 windows batch script example manual#

Supporting multiple versions of Python with Distribute ¶ Setup.py select which source tree should be installed depending on the Under src2 for Python 2 and src3 under Python 3. To include both source trees in one distribution archive, for example One common solution for this is to have two separate package names, like mymoduleĪnd mymodule3, but then you have two packages to maintain and two releases to make.

Uploaded to CheeseShop, many of the users will then get the wrong version and

#Python 2to3 windows batch script example install#

Package and install it, and if you have both Python 2 and Python 3 packages

These tools will download the latest version of the Most packages for general use use distutils and are uploaded to theĬheeseShop, from where they are often installed with tools likeĮasy_install or pip. This canīe as simple as documenting on the download page, if you host your packages Version and Python 2 users get the Python 2 version of your package. Then you need to make sure that Python 3 users get the Python 3 When you write Python modules or packages that are used by other developers You can also exclude some fixers while still running the default all set For more information on that, see Extending 2to3 with your own fixers. It is possible to write your own fixers, although it is highly unlikely that you The ws_comma fixer will fix up the whitespace around commas and The set_literal fixer will change calls to the set() constructor to It will change type(x) = SomeType and other type-tests to using isinstance(), it willĬhange the old style while 1: used in Python 1 into while True: and it

#Python 2to3 windows batch script example update#

The idioms fixer will update some outdated idioms. The other three fixers will make more stylistic changes and are as such not

#Python 2to3 windows batch script example manual#

Included by default as you might have to make manual changes as well. Memoryview type is not completely compatible. The buffer type is gone in Python 3 and the The buffer fixer will replace all use of the buffer type with a Time with -d to convert the doctests and if you have text files that areĭoctests you need to run 2to3 on those explicitly. If you have doctests in your Python files you also need to run 2to3 a second Without changes you must first copy the files and then convert the copy. bak extension, so if you want to keep the original file name Writes the new file to the same file name as the original one and saves the old You include the -w flag it will not write the changes to the files. 2to3 will print out all the changes to the output, but unless It will convert the file or look through the directory for Python files andĬonvert them. You give a file or directory as parameter and Lastly is the 2to3 script itself, which you run to do the That enables 2to3 to convert Python 2 code to Python 3 code are located in The print statement into a print() function. “fixers”, which are modules that make specific refactorings, such as changing Parse tree and from it generate new code. Up a parse tree describing the structure of the code. The core is a lib2to3, a package thatĬontains support for refactoring Python code.