0

I have been using Python for years, both versions 2.x and 3.x and both are installed on my machine.

But I am still unable to install packages properly, this is still black art for me !

When I attempt to get new modules, even following what is documented, I often face problems with the modules not being found. For instance, I just tried with SymPy and executed the setup script, but still get a "ModuleNotFoundError: No module named 'sympy'" message.

Is there a simple reference explaining how Python installations work and what are the involved folders ? What are the magical recipes ? And how to handle multi-version installations ?

My question is not limited to SymPy. I am under Windows, but the answer can be generic.

Improve this question
4
  • 1
    Harry - How did you install SymPy exactly? With pip using specific syntax or what? I saw that the site for this package states "SymPy officially supports Python 2.7, 3.3, 3.4, 3.5, and PyPy" so I assume you're running one of those specific versions? I also see on the site is states "SymPy only depends on mpmath" so you might ensure you have mpmath installed too. You also state you have 2.x and 3.x installed so I suppose you didn't install for one version and your defaults launch the other version? Are you using PyCharm, command line from Linux or Windows or what? More detail please.
    – Vomit IT - Chunky Mess Style
    Commented Jul 7, 2018 at 16:17
  • @PimpJuiceIT: sorry, I am not asking a solution to this particular problem with SymPy. I am looking for tutorial resources on Python packages installation. [I have tried an auto-installer and pip, to no avail, but again, I don't want the answers to focus on that.]
    – user364511
    Commented Jul 8, 2018 at 9:18
  • Look over stackoverflow.com/questions/1449494/… and see if these answers help any
    – Vomit IT - Chunky Mess Style
    Commented Jul 8, 2018 at 10:40
  • @PimpJuiceIT: thanks. These answers mostly speak about installation of Python itself and/or just recommend pip. I need minimum understanding of how intallations work, in order to troubleshoot.
    – user364511
    Commented Jul 9, 2018 at 8:43

0

Reset to default

You must log in to answer this question.