Jam.py documentation

Installation

Install python

Jam.py requires python. If it is not installed you can get the latest version of Python at https://www.python.org/download/.

You can use the following versions of Python with Jam.py:

Python 2:

  • Python 2.7 and newer

Python 3:

  • Python 3.4 and newer

You can verify that Python is installed by typing python from your shell; you should see something like:

Python 2.7.12 (default, Nov 19 2016, 06:48:10)
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>>

If Python 2 and Python 3 are installed try to type python3:

Python 3.5.2 (default, Nov 17 2016, 17:05:23)
[GCC 5.4.0 20160609] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>>

Install Jam.py

Installing an official release with pip

This is the recommended way to install Jam.py.

  1. Install pip. The easiest is to use the standalone pip installer. If your distribution already has pip installed, you might need to update it if it’s outdated. (If it’s outdated, you’ll know because installation won’t work.)

  2. If you’re using Linux, Mac OS X or some other flavor of Unix, enter the command

    sudo pip install jam.py
    

    at the shell prompt.

    If you’re using Windows, start a command shell with administrator privileges and run the command

    pip install jam.py
    

    This will install Jam.py in your Python installation’s site-packages directory.

Installing an official release manually

  1. Download the package archive.

  2. Create a new directory and unpack the archive there.

  3. Go into the directory and run the setup command from command line

$ python setup.py install

This will install Jam.py in your Python installation’s site-packages directory.

Note

On some unix like systems you may need to switch to root or run: sudo python setup.py install.

Setting up a virtual environment

It is best practice to provide a dedicated environment for each Jam.py project you create. There are many options to manage environments and packages within the Python ecosystem, some of which are recommended in the Python documentation.

To create a virtual environment for your project, open a new command prompt, navigate to the folder where you want to create your project and then enter the following:

...\> py -m venv project-name

This will create a folder called ‘project-name’ if it does not already exist and set up the virtual environment. To activate the environment, run:

...\> project-name\Scripts\activate.bat

The virtual environment will be activated and you’ll see “(project-name)” next to the command prompt to designate that. Each time you start a new command prompt, you’ll need to activate the environment again.

Install Jam.py

Jam.py can be installed easily using pip within your virtual environment.

In the command prompt, ensure your virtual environment is active, and execute the following command:

...\> py -m pip install jam.py

This will download and install the latest Jam.py release.

After the installation has completed, you can verify your Jam.py installation by executing pip list in the command prompt.

Common pitfalls

  • If you are connecting to the internet behind a proxy, there might be problems in running the command py -m pip install Jam.py. Set the environment variables for proxy configuration in the command prompt as follows:

    ...\> set http_proxy=http://username:password@proxyserver:proxyport
    ...\> set https_proxy=https://username:password@proxyserver:proxyport
    
  • If your Administrator prohibited setting up a virtual environment, it is still possible to install Jam.py as follows:

    ...\> python -m pip install jam.py
    

    This will download and install the latest Jam.py release.

    After the installation has completed, you can verify your Jam.py installation by executing pip list in the command prompt.

    However, running jam-project.py will fail since it is not in the path. Check the installation folder:

    ...\> python -m site --user-site
    

    The output might be similar to the following:

    C:\Users\youruser\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\site-packages
    

    Replace site-packages at the end of above line with Scripts:

    ...\> dir C:\Users\youruser\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\Scripts
    

    The output might be similar to the following:

    ...\> Directory of C:\Users\yourser\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\Scripts
    
        13/04/2023  02:59 PM    <DIR>          .
        13/04/2023  02:59 PM    <DIR>          ..
        13/04/2023  02:59 PM             1,087 jam-project.py
                       1 File(s)          1,087 bytes
                       2 Dir(s)  177,027,321,856 bytes free
    

    Create the new folder somewhere and run jam-project from from it:

    ...\> python C:\Users\youruser\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.9_qbz5n2kfra8p0\LocalCache\local-packages\Python39\Scripts\jam-project.py
    

    Run the new project:

    ...\> python server.py