UTBot cannot install Python dependencies

[tyuldashev]

Description

When user I try to generate tests for Python file for the fist time then UTBot suggests to install missing dependencies, but it seems hangs at that moment.

To Reproduce

Steps to reproduce the behavior:

1. Install Python plugin and latest UTBot plugin if needed
2. Create new Python project
3. Add some simple code in the project

def div(a, b):
    return a / b

4. Invoke test generation and start with default parameters
5. UTBot suggests to install required dependencies - agree and proceed
   

Expected behavior
Dependencies are installed and then tests are generated.

Actual behavior

Installation started but didn't finish in several minutes, so I tried to cancel it, but it also hanged.

Visual proofs (screenshots, logs, images)

Environment
Intellij IDEA 2022.2.3
UTBot 2022.12.587

Additional context

I tried to turn off proxy and etc, that didn't help.

Even that's a network problem UTBot should be able to detect such problems (or timeout) also that task should be cancelable.

[alisevych]

Seems to be network-related issue: these requirements were successfully installed for me in the same IDEA.
Can be handled as enhancement (see suggestion in Additional context) - timeout and cancel possibility.

[tyuldashev]

As we found out that was some type of configuration problem with venv, it was not possible to install coverage dependency there, because of the error below. So we need better handling of such problems: show warning with error instead of hanging.

uilding 'coverage.tracer' extension
      error: --plat-name must be one of ('win32', 'win-amd64', 'win-arm32', 'win-arm64')
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for coverage
Failed to build coverage
ERROR: Could not build wheels for coverage, which is required to install pyproject.toml-based projects