Python file version info

For example, if there is a small problem that is breaking things for users in version 1. The middle number is referred to as the minor version number. This should be incremented if we add a new feature to our library.

Existing users should be able to continue using the library exactly as they always had done regardless of the new feature. Also when incrementing this number we should reset the bugfix number to 0. The left number is the major version number. This should be incremented if we have made a change which will break things for our users.

After this version, they cannot just continue as usual and will probably have to read the documentation and change their behavior accordingly.

We also reset both other numbers to 0. In our setup. When the major version of a library is 0 this means it is in development mode and should be considered unstable. Generally in this mode, the bugfix version remains the same but the minor version is incremented for both major and minor changes, meaning anything could break at any time.

This is because many open source projects are run by volunteers. Folks with limited time to work on projects do not want to commit to a stable API. ArgumentParser setuptools. Python sys. Project: mutatest Author: EvanKepner File: conftest. CoverageData covdata. Project: Gurux. It's changed to bytearray. Project: aospy Author: spencerahill File: versioneer. Project: cherrypy Author: cherrypy File: profiler.

Sometimes you may want to check the version of Python when you are coding an application i. This is especially useful when you have multiple Python versions installed on your computer. To check which Python version is running, you can use either the sys or the platform module. The script will be the same for Windows, macOS, and Linux.

Both code snippets output the Python version in the string format. If necessary, you can also get the version number in the tuple format. The tuple will contain five components: major, minor, micro, release level, and serial:. Of course, you can easily obtain the individual components of this tuple using an index e.

Pretty simple, right? No wonder Python is so popular. Python 2 is an older version that was actively used in software development and IT operations DevOps. However, it is no longer under development and has been discontinued starting from January 1, This implies that any bugs or security problems discovered in Python 2 are no longer being addressed by Python developers.

Python 3 was first introduced in As Python 2 is no longer supported, you should definitely choose Python 3 if you are writing a new application or just starting to learn Python. Certain applications may require a specific version of Python. There are different versions of Python, but the two most popular ones are Python 2. The x stands for the revision level and could change as new releases come out. While major releases are not fully compatible, minor releases generally are.

Version 3. The final digit signifies the latest patches and updates. Python 2. When using Python, it is essential to know which version an application requires, and which version you have. Python 2 will stop publishing security updates and patches after They extended the deadline because of the large number of developers using Python 2. Python 3 includes a 2 to 3 utility that helps translate Python 2 code into Python 3. Most out-of-the-box Windows installations do not come with Python pre-installed.