Python虛擬環境- 構建或安裝包過程中出現的錯誤

1. lxml 依賴庫問題:

1，安裝的libxml2
tar -xzvf libxml2-2.9.0.tar.gz
./configure --prefix=/home/was/software/lxml_libxml2 --without-python
make
make install
2，安裝的libxslt
./configure --prefix=/home/was/software/lxml_libxml2 --without-crypto --without-python --with-libxml-prefix=/home/was/software/lxml_libxml2/
make
make install
3，安裝LXML
tar -xzvf lxml-4.2.3.tar.gz
cd lxml-4.2.3
# 解壓縮、編譯
/home/was/software/python27/bin/python ./setup.py build --with-xslt-config=/home/was/software/lxml_libxml2/bin/xslt-config
# 虛擬環境下的 安裝:
python ./setup.py install

# 指定在 本地python
```python
/home/was/software/python27/bin/

python ./setup.py build --with-xslt-config=/home/was/env/bin/xslt-config 
lxml
./configure --prefix=/home/was/env --without-python

./configure --prefix=/home/was/env --without-crypto --without-python --with-libxml-prefix=/home/was/env/

2. mkvirtualenv異常時

mkvirtualenv misc --no-setuptools --no-pip

3. 在生成鏡像時，安裝指定python包時報錯

> RUN pip install -i https://doubanio.com/simple/ -r requirement.txt
ERROR: Could not install packages due to an EnvironmentError: [Errno 39] Directory not empty: '/usr/local/python3/lib/python3.6/site-packages/certifi-2018.11.29.dist-info/'

解決方案
發現還是權限問題，故需加入參數--user解決
RUN pip install --user -i https://doubanio.com/simple/ -r requirement.txt