I used to use the shebang
我以前用过shebang
#!/usr/bin/env python
When is it better to use
什么时候使用更好
#!/usr/bin/python
What is the exact difference between them?
它们之间的确切区别是什么?
1 个解决方案
#1
61
#!/usr/bin/python is hardcoded to always run /usr/bin/python, while #!/usr/bin/env python will run whichever python would be default in your current environment (it will take in account for example $PATH, you can check which python interpreter will be used with which python).
# !/usr/bin/python硬编码为总是运行/usr/bin/python，而#!/usr/bin/env python将运行当前环境中默认的任何python(它将考虑例如$PATH，您可以检查哪个python解释器将与哪个python一起使用)。
The second way ( #!/usr/bin/env python ) is preferred , as it's not dependent on particular installation. It will work for example with virtualenv setups or systems where there is no /usr/bin/python, but only e.g. /usr/local/bin/python.
第二种方法(#!/usr/bin/env python)是首选，因为它不依赖于特定的安装。例如，在没有/usr/bin/python的情况下，但是只有/usr/ local/bin/python才可以使用它。
#1
61
#!/usr/bin/python is hardcoded to always run /usr/bin/python, while #!/usr/bin/env python will run whichever python would be default in your current environment (it will take in account for example $PATH, you can check which python interpreter will be used with which python).
# !/usr/bin/python硬编码为总是运行/usr/bin/python，而#!/usr/bin/env python将运行当前环境中默认的任何python(它将考虑例如$PATH，您可以检查哪个python解释器将与哪个python一起使用)。
The second way ( #!/usr/bin/env python ) is preferred , as it's not dependent on particular installation. It will work for example with virtualenv setups or systems where there is no /usr/bin/python, but only e.g. /usr/local/bin/python.
第二种方法(#!/usr/bin/env python)是首选，因为它不依赖于特定的安装。例如，在没有/usr/bin/python的情况下，但是只有/usr/ local/bin/python才可以使用它。