Hi Yuval, What version of pip are you using? It is reported here that 18.0 and 18.1 are related to this error: https://github.com/pypa/pip/issues/5665
You could try up- or downgrading pip to another version. One of the other solutions posted there is disabling the progress bar: --progress-bar=off (I am assuming the complete command would be: python -m pip install arches --progress-bar=off --no-binary :all: ) Or similar with: pip install arches -q --no-binary :all: (Downside of this is that you cannot see the progress of the installation) I hope this helps, Vincent On Wed, Feb 27, 2019 at 5:57 AM Yuval Krymolowski <[email protected]> wrote: > Yes, python 2.7.19 and I updated the PATH as instructed. I also added > c:\python27 to the system's path . > > Yuval > > On Tuesday, February 26, 2019 at 8:12:07 PM UTC+2, Yuval Krymolowski wrote: >> >> Hello, >> >> I followed the installation insttructions on windows and got thie error >> message, please help: >> >> (ENV) C:\Users\yuval\Documents\Projects>python -m pip install arches >> --no-binary :all: >> Collecting arches >> Downloading >> https://files.pythonhosted.org/packages/86/f5/d49a1a94feec4859706672495c103a1ef1cca175b466c58880e16f45b6bc/arches-4.3.3.tar.gz >> (39.7MB) >> 1% |Could not install packages due to an EnvironmentError: [Errno 42] >> Illegal byte sequence >> > -- > -- To post, send email to [email protected]. To unsubscribe, > send email to [email protected]. For more > information, visit https://groups.google.com/d/forum/archesproject?hl=en > --- > You received this message because you are subscribed to the Google Groups > "Arches Project" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/d/optout. > -- -- To post, send email to [email protected]. To unsubscribe, send email to [email protected]. For more information, visit https://groups.google.com/d/forum/archesproject?hl=en --- You received this message because you are subscribed to the Google Groups "Arches Project" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
