我尝试从PyCharm卸载PyXB，并使用pip命令行。

我尝试过：pip卸载PyXB，我得到错误消息。如下所列：

    C:\Users\NTier> pip list
    Package         Version
    --------------- ---------
    certifi         2018.4.16
    chardet         3.0.4
    click           6.7
    entrypoints     0.2.3
    idna            2.7
    jsonconfig-tool 1.5
    keyring         13.2.1
    messages        0.4.3
    pip             18.1
    python-box      3.2.0
    pywin32-ctypes  0.1.2
    PyXB            1.2.6
    recordclass     0.5
    requests        2.19.1
    setuptools      39.0.1
    urllib3         1.23
    validus         0.3.0

    C:\Users\NTier>pip uninstall PyXB

Cannot uninstall 'PyXB'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.

“手动移除”我已经看过了。如何做到这一点并不明显。