weechat-matrix installation errors https://github.com/poljar/weechat-matrix#installation

Dockerfile

FROM ubuntu

RUN apt-get update && apt-get install -y \
        git \
        libolm-dev \
        python-pip \
        && rm -rf /var/lib/apt/lists/*

RUN python -m pip install --upgrade pip

RUN git clone https://github.com/poljar/weechat-matrix.git

WORKDIR weechat-matrix

ENV PATH="/root/.local/bin:${PATH}"

# python -m pip install -r requirements.txt
# results in errors

error

root@6af3facdaee6:/weechat-matrix# python -m pip install -r requirements.txt 
DEPRECATION: Python 2.7 will reach the end of its life on January 1st, 2020. Please upgrade your Python as Python 2.7 won't be maintained after that date. A future version of pip will drop support for Python 2.7.
Collecting pyOpenSSL (from -r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/01/c8/ceb170d81bd3941cbeb9940fc6cc2ef2ca4288d0ca8929ea4db5905d904d/pyOpenSSL-19.0.0-py2.py3-none-any.whl (53kB)
    100% |################################| 61kB 459kB/s 
Collecting typing (from -r requirements.txt (line 2))
  Downloading https://files.pythonhosted.org/packages/cc/3e/29f92b7aeda5b078c86d14f550bf85cff809042e3429ace7af6193c3bc9f/typing-3.6.6-py2-none-any.whl
Collecting webcolors (from -r requirements.txt (line 3))
  Downloading https://files.pythonhosted.org/packages/1d/44/c4902683be73beba20afd299705e11f0a753a01cc7f9d6a070841848605b/webcolors-1.8.1-py2.py3-none-any.whl
Collecting future (from -r requirements.txt (line 4))
  Downloading https://files.pythonhosted.org/packages/90/52/e20466b85000a181e1e144fd8305caf2cf475e2f9674e797b222f8105f5f/future-0.17.1.tar.gz (829kB)
    100% |################################| 829kB 2.0MB/s 
Collecting atomicwrites (from -r requirements.txt (line 5))
  Downloading https://files.pythonhosted.org/packages/52/90/6155aa926f43f2b2a22b01be7241be3bfd1ceaf7d0b3267213e8127d41f4/atomicwrites-1.3.0-py2.py3-none-any.whl
Collecting attrs (from -r requirements.txt (line 6))
  Downloading https://files.pythonhosted.org/packages/23/96/d828354fa2dbdf216eaa7b7de0db692f12c234f7ef888cc14980ef40d1d2/attrs-19.1.0-py2.py3-none-any.whl
Collecting logbook (from -r requirements.txt (line 7))
  Downloading https://files.pythonhosted.org/packages/f6/83/20fc0270614919cb799f76e32cf143a54c58ce2fa45c19fd38ac2e4f9977/Logbook-1.4.3.tar.gz (85kB)
    100% |################################| 92kB 2.7MB/s 
Collecting pygments (from -r requirements.txt (line 8))
  Downloading https://files.pythonhosted.org/packages/13/e5/6d710c9cf96c31ac82657bcfb441df328b22df8564d58d0c4cd62612674c/Pygments-2.3.1-py2.py3-none-any.whl (849kB)
    100% |################################| 849kB 3.4MB/s 
Collecting matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0 from git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0 (from -r requirements.txt (line 9))
  Cloning https://github.com/poljar/matrix-nio.git (to revision master) to /tmp/pip-install-5UL9Sk/matrix-nio
Collecting cryptography>=2.3 (from pyOpenSSL->-r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/c3/c1/cf8665c955c9393e9ff0872ba6cd3dc6f46ef915e94afcf6e0410508ca69/cryptography-2.6.1-cp27-cp27mu-manylinux1_x86_64.whl (2.3MB)
    100% |################################| 2.3MB 14.9MB/s 
Requirement already satisfied: six>=1.5.2 in /usr/lib/python2.7/dist-packages (from pyOpenSSL->-r requirements.txt (line 1)) (1.11.0)
Collecting h11 (from matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/f9/f3/8e4cf5fa1a3d8bda942a0b1cf92f87815494216fd439f82eb99073141ba0/h11-0.8.1-py2.py3-none-any.whl (55kB)
    100% |################################| 61kB 3.9MB/s 
Collecting h2 (from matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/a6/b2/0348a08cce9980b15ef8607adc7f0534193fe25b9269daa0c327dc74f026/h2-3.1.0-py2.py3-none-any.whl (64kB)
    100% |################################| 71kB 4.3MB/s 
Collecting jsonschema (from matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/aa/69/df679dfbdd051568b53c38ec8152a3ab6bc533434fc7ed11ab034bf5e82f/jsonschema-3.0.1-py2.py3-none-any.whl (54kB)
    100% |################################| 61kB 7.0MB/s 
Collecting peewee (from matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/c9/e4/f82bd273a7c88e7a2f71652324039c7e382f2f88eced01b9799d6c936ad2/peewee-3.9.3.tar.gz (2.2MB)
    100% |################################| 2.2MB 2.1MB/s 
Collecting pycryptodome (from matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/41/80/216cd888906de20916c384d4345dd12fa4c475acd6b25af3f38449f727d5/pycryptodome-3.8.1-cp27-cp27mu-manylinux1_x86_64.whl (9.7MB)
    100% |################################| 9.7MB 427kB/s 
Collecting python-olm-dev (from matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/c1/37/02af98ce04dcfe473e5714703b4d5b1e4e77806a1c412c6c346310e132ac/python-olm-dev-3.0.tar.gz (238kB)
    100% |################################| 245kB 3.6MB/s 
Collecting unpaddedbase64 (from matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/d9/ee/6eff0c493c4cab61f17dfa65c058d1e8d2bf4ce33f44e1bc5c4834479dbc/unpaddedbase64-1.1.0-py2-none-any.whl
Requirement already satisfied: asn1crypto>=0.21.0 in /usr/lib/python2.7/dist-packages (from cryptography>=2.3->pyOpenSSL->-r requirements.txt (line 1)) (0.24.0)
Requirement already satisfied: enum34; python_version < "3" in /usr/lib/python2.7/dist-packages (from cryptography>=2.3->pyOpenSSL->-r requirements.txt (line 1)) (1.1.6)
Requirement already satisfied: ipaddress; python_version < "3" in /usr/lib/python2.7/dist-packages (from cryptography>=2.3->pyOpenSSL->-r requirements.txt (line 1)) (1.0.17)
Collecting cffi!=1.11.3,>=1.8 (from cryptography>=2.3->pyOpenSSL->-r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/9d/6f/aea9f5559fb593da07ff34e67513bd62483b45715b4a5f5fae6a0a5792ea/cffi-1.12.2-cp27-cp27mu-manylinux1_x86_64.whl (413kB)
    100% |################################| 419kB 8.3MB/s 
Collecting hyperframe<6,>=5.2.0 (from h2->matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/19/0c/bf88182bcb5dce3094e2f3e4fe20db28a9928cb7bd5b08024030e4b140db/hyperframe-5.2.0-py2.py3-none-any.whl
Collecting hpack<4,>=2.3 (from h2->matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/8a/cc/e53517f4a1e13f74776ca93271caef378dadec14d71c61c949d759d3db69/hpack-3.0.0-py2.py3-none-any.whl
Collecting pyrsistent>=0.14.0 (from jsonschema->matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/8c/46/4e93ab8a379d7efe93f20a0fb8a27bdfe88942cc954ab0210c3164e783e0/pyrsistent-0.14.11.tar.gz (104kB)
    100% |################################| 112kB 2.2MB/s 
Collecting functools32; python_version < "3" (from jsonschema->matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9))
  Downloading https://files.pythonhosted.org/packages/c5/60/6ac26ad05857c601308d8fb9e87fa36d0ebf889423f47c3502ef034365db/functools32-3.2.3-2.tar.gz
Requirement already satisfied: setuptools in /usr/lib/python2.7/dist-packages (from jsonschema->matrix-nio@ git+https://github.com/poljar/matrix-nio.git@master#egg=matrix-nio-0->-r requirements.txt (line 9)) (39.0.1)
Collecting pycparser (from cffi!=1.11.3,>=1.8->cryptography>=2.3->pyOpenSSL->-r requirements.txt (line 1))
  Downloading https://files.pythonhosted.org/packages/68/9e/49196946aee219aead1290e00d1e7fdeab8567783e83e1b9ab5585e6206a/pycparser-2.19.tar.gz (158kB)
    100% |################################| 163kB 8.4MB/s 
Building wheels for collected packages: future, logbook, matrix-nio, peewee, python-olm-dev, pyrsistent, functools32, pycparser
  Building wheel for future (setup.py) ... done
  Stored in directory: /root/.cache/pip/wheels/0c/61/d2/d6b7317325828fbb39ee6ad559dbe4664d0896da4721bf379e
  Building wheel for logbook (setup.py) ... done
  Stored in directory: /root/.cache/pip/wheels/a2/9f/6f/8c7a4ed6b9f6f3c98b742dbb0fd41fff3c130119c507376301
  Building wheel for matrix-nio (setup.py) ... done
  Stored in directory: /tmp/pip-ephem-wheel-cache-W69Qd_/wheels/05/35/77/9f7b8b779bc2cddf53647d8d68ef5f8c7731dbc30973e4df92
  Building wheel for peewee (setup.py) ... done
  Stored in directory: /root/.cache/pip/wheels/05/a3/fd/4753289244f7b40745f016555a95ba4529f11aecadf64c77f0
  Building wheel for python-olm-dev (setup.py) ... error
  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-5UL9Sk/python-olm-dev/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/pip-wheel-5zRBrC --python-tag cp27:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.linux-x86_64-2.7
  creating build/lib.linux-x86_64-2.7/olm
  copying olm/utility.py -> build/lib.linux-x86_64-2.7/olm
  copying olm/group_session.py -> build/lib.linux-x86_64-2.7/olm
  copying olm/__version__.py -> build/lib.linux-x86_64-2.7/olm
  copying olm/pk.py -> build/lib.linux-x86_64-2.7/olm
  copying olm/account.py -> build/lib.linux-x86_64-2.7/olm
  copying olm/_compat.py -> build/lib.linux-x86_64-2.7/olm
  copying olm/session.py -> build/lib.linux-x86_64-2.7/olm
  copying olm/_finalize.py -> build/lib.linux-x86_64-2.7/olm
  copying olm/__init__.py -> build/lib.linux-x86_64-2.7/olm
  running build_ext
  generating cffi module 'build/temp.linux-x86_64-2.7/_libolm.c'
  creating build/temp.linux-x86_64-2.7
  building '_libolm' extension
  creating build/temp.linux-x86_64-2.7/build
  creating build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7
  x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-3hk45v/python2.7-2.7.15~rc1=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I/usr/include/python2.7 -c build/temp.linux-x86_64-2.7/_libolm.c -o build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7/_libolm.o
  build/temp.linux-x86_64-2.7/_libolm.c:496:18: fatal error: olm/pk.h: No such file or directory
           #include <olm/pk.h>
                    ^~~~~~~~~~
  compilation terminated.
  error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
  
  ----------------------------------------
  Failed building wheel for python-olm-dev
  Running setup.py clean for python-olm-dev
  Building wheel for pyrsistent (setup.py) ... done
  Stored in directory: /root/.cache/pip/wheels/83/59/9a/a037b9b3c3e93d9275ea0aff9d6064400f372879dfdab01afe
  Building wheel for functools32 (setup.py) ... done
  Stored in directory: /root/.cache/pip/wheels/b5/18/32/77a1030457155606ba5e3ec3a8a57132b1a04b1c4f765177b2
  Building wheel for pycparser (setup.py) ... done
  Stored in directory: /root/.cache/pip/wheels/f2/9a/90/de94f8556265ddc9d9c8b271b0f63e57b26fb1d67a45564511
Successfully built future logbook matrix-nio peewee pyrsistent functools32 pycparser
Failed to build python-olm-dev
Installing collected packages: pycparser, cffi, cryptography, pyOpenSSL, typing, webcolors, future, atomicwrites, attrs, logbook, pygments, h11, hyperframe, hpack, h2, pyrsistent, functools32, jsonschema, peewee, pycryptodome, python-olm-dev, unpaddedbase64, matrix-nio
  Found existing installation: cryptography 2.1.4
    Uninstalling cryptography-2.1.4:
      Successfully uninstalled cryptography-2.1.4
  Running setup.py install for python-olm-dev ... error
    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-5UL9Sk/python-olm-dev/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-yP8qBd/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-2.7
    creating build/lib.linux-x86_64-2.7/olm
    copying olm/utility.py -> build/lib.linux-x86_64-2.7/olm
    copying olm/group_session.py -> build/lib.linux-x86_64-2.7/olm
    copying olm/__version__.py -> build/lib.linux-x86_64-2.7/olm
    copying olm/pk.py -> build/lib.linux-x86_64-2.7/olm
    copying olm/account.py -> build/lib.linux-x86_64-2.7/olm
    copying olm/_compat.py -> build/lib.linux-x86_64-2.7/olm
    copying olm/session.py -> build/lib.linux-x86_64-2.7/olm
    copying olm/_finalize.py -> build/lib.linux-x86_64-2.7/olm
    copying olm/__init__.py -> build/lib.linux-x86_64-2.7/olm
    running build_ext
    generating cffi module 'build/temp.linux-x86_64-2.7/_libolm.c'
    creating build/temp.linux-x86_64-2.7
    building '_libolm' extension
    creating build/temp.linux-x86_64-2.7/build
    creating build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7
    x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fdebug-prefix-map=/build/python2.7-3hk45v/python2.7-2.7.15~rc1=. -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I/usr/include/python2.7 -c build/temp.linux-x86_64-2.7/_libolm.c -o build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7/_libolm.o
    build/temp.linux-x86_64-2.7/_libolm.c:496:18: fatal error: olm/pk.h: No such file or directory
             #include <olm/pk.h>
                      ^~~~~~~~~~
    compilation terminated.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
    
    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-install-5UL9Sk/python-olm-dev/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-record-yP8qBd/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-install-5UL9Sk/python-olm-dev/

I had this issue you need to install libolm(if you haven't already) or if you're getting this error after having it installed get a more updated version which probably means compiling it from source from the gitlab repo

sudo apt-get install libolm3