pythonpython-3.xpippymodbus3

Try to install pymodbus3 but can't find Python 3.0 or later

I have installed Python 2.7, 3.5.2 and 3.6. I try to install pymodbus3 for Python 3.5.2. When I run

pip install -U pymodbus3 --trusted-host pypi.python.org

I get the error:

 Collecting pymodbus3
 Downloading pymodbus3-1.0.0.tar.gz (80kB)
 100% |################################| 81kB 6.8MB/s
 Complete output from command python setup.py egg_info:
 You need python 3.0 or later to run this script!

I also added Python 3.5.2 to the Python path. What is the next step for analyse my problem?

EDIT:

pip --version

gives me

pip 9.0.1 from C:\Python27\Lib\site-packages (python 2.7)

So I assume that I have to use pip for python3?

Solution

  • Use pip3:

    pip3 install -U pymodbus3 --trusted-host pypi.python.org

    pip is for Python 2 and pip3 for Python 3.

    You can find out where pip is located with.

    On Windows:

    where pip

    or 

    where pip3

    on Unix/Mac:

    which pip

    or:

    which pip3

    The argument -a shows you all instances. You can choose one explicitly:

    /path/to/my/pip/pip3

    On Windows the path might not be set.

    where python

    should give you the Python executable.

    In the same directory should be a sub-directory Scripts that contains pip3. Add this to your PATH.

    You can try first with an absolute path:

    C:\path\to\python\Scripts\pip3