Dear Rajdeep,
It seems that the update of setuptools happened with python 2 instead of 3. You can force pip to use a specific Python interpreter by calling it as 'python -m pip' instead of simply calling 'pip', where 'python' should be the specific interpreter that you want to install something on.
So in this case, you can try:
sudo python3 -m pip install -U setuptools python3 -m pip install --user PATH_TO_Z2PACK
Best regards,
Dominik
On 16.04.2018 06:42, Rajdeep Banerjee wrote:
Dear sir, I tried following your suggestion and found the following:
sudo pip install -U setuptools
Requirement already up-to-date: setuptools in /usr/local/lib/python2.7/dist-packages Cleaning up...
It seems although I have installed python-3.5, but my default is python-2.7. I changed the alias in bash so that calling python will call python-3.5. But the problem persists.
sudo python -m pip install --user
/home/rajdeep/soft/Z2Pack-master-2.1.x
...
Downloading/unpacking fsc.export (from z2pack==2.1.1) Downloading fsc.export-1.1.0.tar.gz Running setup.py (path:/tmp/pip_build_rajdeep/fsc.export/setup.py) egg_info for package fsc.export error in fsc.export setup command: Invalid environment marker: python_version < "3" Complete output from command python setup.py egg_info: error in fsc.export setup command: Invalid environment marker: python_version < "3"
Please help. Thanks in advance.
best regards, Rajdeep
On Sat, Apr 14, 2018 at 10:34 PM, Rajdeep Banerjee <rajdeep.jzs@gmail.com mailto:rajdeep.jzs@gmail.com> wrote:
Dear sir, thank you very much for your suggestion, I will let you know if it works. best regards, Rajdeep On Sat, Apr 14, 2018, 8:57 PM Dominik Gresch <greschd@phys.ethz.ch <mailto:greschd@phys.ethz.ch>> wrote: Hi Rajdeep, I think this issue might be due to an outdated version of the 'setuptools' package which does not recognize these environment markers. Can you try running 'pip install -U setuptools' before installing Z2Pack? Best regards, Dominik Am 14.04.2018 08:23 schrieb Rajdeep Banerjee <rajdeep.jzs@gmail.com <mailto:rajdeep.jzs@gmail.com>>: Hi, I am trying to install Z2Pack 2.1.1 (from source file). I am getting the following error: Downloading/unpacking fsc.export (from z2pack==2.1.1) Downloading fsc.export-1.1.0.tar.gz Running setup.py (path:/tmp/pip_build_rajdeep/fsc.export/setup.py) egg_info for package fsc.export error in fsc.export setup command: Invalid environment marker: python_version < "3" Complete output from command python setup.py egg_info: error in fsc.export setup command: Invalid environment marker: python_version < "3" ---------------------------------------- Cleaning up... Command python setup.py egg_info failed with error code 1 in /tmp/pip_build_rajdeep/fsc.export Storing debug log for failure in /tmp/tmp3bth1l3g I thought it is due to python version but I have python 3.5 as shown below: [rajdeep@anna: Z2Pack-master-2.1.x]:python Python 3.5.3 (default, Apr 22 2017, 00:00:00) [GCC 4.8.4] on linux Type "help", "copyright", "credits" or "license" for more information. >>> Please help. Thanks in advance! best regards, -- Rajdeep Banerjee PhD student JNCASR, Bangalore India-- Rajdeep Banerjee PhD student JNCASR, Bangalore India