gistfile1.txt

Given:

FROM ckolos/archlinux:latest
RUN pacman -S --noconfirm python python-pip python-virtualenv git libffi libyaml
RUN cd $HOME && \
    git clone https://github.com/mozilla/sops.git  && \
    pip install virtualenv --upgrade && \
    virtualenv ~/sopsvenv
RUN source ~/sopsvenv/bin/activate && pip install -U sops

<snip>

Step 4 : RUN source ~/sopsvenv/bin/activate && pip install -U sops
 ---> Running in 5251d8ac9134
Collecting sops
  Downloading sops-0.9.tar.gz
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):
      File "<string>", line 20, in <module>
      File "/tmp/pip-build-t4_ai1_0/sops/setup.py", line 21, in <module>
        long_description=read('README.rst'),
      File "/tmp/pip-build-t4_ai1_0/sops/setup.py", line 6, in read
        return open(os.path.join(os.path.dirname(__file__), fname)).read()
      File "/root/sopsvenv/lib/python3.5/encodings/ascii.py", line 26, in decode
        return codecs.ascii_decode(input, self.errors)[0]
    UnicodeDecodeError: 'ascii' codec can't decode byte 0xc3 in position 23689: ordinal not in range(128)

    ----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-t4_ai1_0/sops