如何运行此 python 脚本？

Question

I'm new to python, and I was wondering if you could help me run a python script. I'm trying to run a script called PunchBox from Github: https://github.com/psav/punchbox . So far, I have Python 3.9.5 and Git Bash.

In the GitHub page, it says:

To install, clone the repo, cd into it and then execute the following:

virtualenv -p python2 .pb2
source .pb2/bin/activate
pip install -U pip
pip install .

What does this mean exactly? Where do I run this code?

So far, I tried downloading the zip file from GitHub, installing Python 3.5.9, using cmd, finding the directory with cd, and running that code; but got an error:

Exception: Versioning for this project requires either an sdist tarball, or access to an upstream git repository. It's also possible that there is a mismatch between the package name in setup.cfg and the argument given to pbr.version.VersionInfo. Project name punchbox was given, but was not able to be found.

error in punchbox setup command: Error parsing C:\Users\Mi\Downloads\punchbox-master\punchbox-master\setup.cfg: Exception: Versioning for this project requires either an sdist tarball, or access to an upstream git repository. It's also possible that there is a mismatch between the package name in setup.cfg and the argument given to pbr.version.VersionInfo. Project name punchbox was given, but was not able to be found.

There's also a requirements.txt that lists additional scripts needed:

pre-commit
click
mido
pbr
PyYAML
svgwrite

Do these install automatically upon running the script for the first time?

I'm a little confused why I'm getting an error. Do you know what I'm doing wrong?

Thank you so much! Giovanni

Answer 1

I assume you are new to programming. You have to write these lines in a terminal.

On Windows, it is Command Prompt or PowerShell Applications (latter preferred). On macOS, it is terminal

Copy all these lines at once, and paste them to your preferred terminal. The terminal will automatically run these one after the another.

FYI : Venv is a python package to create a virtual environment. The preceding commands set up the environment. Now install the required dependencies using this command instead of the last command ( pip install. )

pip install -r requirements.txt

Answer 2

Based on your comment, it looks like you don't have virtualenv installed in your system. You may install it using the command pip install virtualenv .

Now, as you are using a Windows machine, you may open a Command Prompt or Windows PowerShell window and navigate to the directory where your cloned project resides. Now, execute the following commands.

virtualenv -p python2.pb2
.pb2\Scripts\activate.bat
pip install -U pip
pip install -r requirements.txt

Once you are done working in your virtual environment (which is named .pb2 ), you may close it by executing deactivate command.

Answer 3

@Giovanni T. See, as far as you have installed Python and also downloaded the GitHub Repository as a zip file.

pip install -r requirements.txt Just run this command.

Please make sure that the directory is pointing to the folder where this requirements.txt file is stored.