pip install scikit-image matplotlib

pip install scikit-image -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
sudo apt-get install python3-matplotlib
udo pip3 install -U pip testresources setuptools

cuowu:

Traceback (most recent call last):
      File "/tmp/pip-install-78aw5qao/llvmlite_5050611d6ce14f0886b80bba2b4f1362/ffi/build.py", line 168, in <module>
        main()
      File "/tmp/pip-install-78aw5qao/llvmlite_5050611d6ce14f0886b80bba2b4f1362/ffi/build.py", line 158, in main
        main_posix('linux', '.so')
      File "/tmp/pip-install-78aw5qao/llvmlite_5050611d6ce14f0886b80bba2b4f1362/ffi/build.py", line 108, in main_posix
        "to the path for llvm-config" % (llvm_config,))
    RuntimeError: /usr/bin/llvm-config-3.9 failed executing, please point LLVM_CONFIG to the path for llvm-config
    error: command '/usr/bin/python' failed with exit status 1
    ----------------------------------------
ERROR: Command errored out with exit status 1: /usr/bin/python -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-78aw5qao/llvmlite_5050611d6ce14f0886b80bba2b4f1362/setup.py'"'"'; __file__='"'"'/tmp/pip-install-78aw5qao/llvmlite_5050611d6ce14f0886b80bba2b4f1362/setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-yzchieeb/install-record.txt --single-version-externally-managed --user --prefix= --compile --install-headers /home/tx2-1/.local/include/python3.6m/llvmlite Check the logs for full command output.

then:
sudo apt-get install llvm-8
export LLVM_CONFIG=/usr/bin/llvm-config-8
pip install numba0.45.1 llvmlite0.30.0