The term 'python3' is not recognized as the name of a cmdlet about tiny_python_projects HOT 2 CLOSED

just change everywhere in the test files is "Python3" to "Python" and you are good to go.

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@numantyke In case the computer you are using runs Linux, it is first up to the authors of the distribution how the programs and packages are named in the package managers, and eventually called from the CLI. In the case of pytest for example, for some time, there was pytest for (now legacy) Python 2 which you called by pytest my_program.py. All while at the same time, there equally was pytest for (now contemporary) Python 3 which you called by pytest-3 my_program.py. If you happen to work with a Linux distribution which never used Python 2 (e.g., Xubuntu 20.04 LTS fossa, or more recent), chances are that a call like pytest my_program.py now (implicitly) refers to the pytest for Python 3 only. (And similar python once about python 2, now more likely python 3.)

More generally speaking, however, you may set an alias in your shell's configuration file. In case you use bash, this would be .bashrc in your home directory. If applied with care, you may (re)define how programs/combination of instructions are easier accessible to you. E.g., an entry of

alias mv="mv -i"  # safety guard to prevent unintentional overwriting

in this register and restart of your bash (source ~/.bashrc) will prevent a file being moved accidentally overwrite an other file of same file name. The concept is briefly described e.g., by softwarecarpentry.

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