How do i make python my default version?
[updated for 2021] Show (Regardless if you are on Mac, Linux, or Windows:) If you are confused about how to start the latest version of python, on most platforms it is the case that Historically...The naming convention is that generally, most scripts will call python2 or python3 explicitly. This happened due to a need for backwards compatibility. Even though technically python doesn't even guarantee backwards compatibility between minor versions, Python3 really breaks backwards compatibility. At the time, programs invoking ' At the time this answer was written, OP should not have changed this due to maintaining compatibility for old scripts. Circa year 2021...Nowadays, many years after the python2->python3 transition, most software explicitly refers to python2 or python3 (at least on Linux). For example, they might call The prescription for how distributions should handle the Basically if you are writing a library, you should specify the version of python (2 or 3, or finer-grained under specific circumstances) you can use. Otherwise as an end user, you should feel free to rename this for your own personal use (though your OS or distribution may not make that easy). Shell alias:You could, however, make a custom alias in your shell. The way you do so depends on the shell, but perhaps you could do Confused users should not try to create aliases or virtual environments or similar that make Different 3.* versions, or 2.* versions:In the extremely unlikely case that if someone comes to this question with two python3 versions e.g. 3.1 vs 3.2, and you are confused that you have somehow installed two versions of python, this is possibly because you have done manual and/or manual installations. You can use your OS's standard package/program install/uninstall/management facilities to help track things down, and perhaps (unless you are doing dev work that surprisingly is impacted by the few backwards-incompatible changes
between minor versions) delete the old version (or do A bit about $PATHsidenote: To elaborate a bit on PATH: the usual ways that programs are selected is via the
sidenote2: (In the rarer case a python program invokes a sub-program with the How do I get the default version of Python?For Windows:. Advanced System Settings > Advance (tab) . On bottom you'll find 'Environment Variables'. Double-click on the Path . You'll see path to one of the python installations, change that to path of your desired version.. How do I make Python 3.10 default Windows?Go to This PC → Right-click → Click on Properties → Advanced System Settings. You will see the System Properties. From here navigate to the Advanced Tab -> Click on Environment Variables. You will see a top half for the user variables and the bottom half for System variables.
How do I switch to a specific version of Python?As a standard, it is recommended to use the python3 command or python3. 7 to select a specific version. The py.exe launcher will automatically select the most recent version of Python you've installed. You can also use commands like py -3.7 to select a particular version, or py --list to see which versions can be used.
|