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How to run python in linux? This problem may be often seen in our daily study or work. I hope you can gain a lot from this question. The following is the reference content that the editor brings to you, let's take a look at it!

There are several ways to run python under linux:

1. Command line execution:

Create a * .py document and write python code in it. After that, execute on the command line:

$python * .py

Note: 1. It is necessary to specify the absolute path of the file; 2. Output should be specified in the source code, such as print

2. UNIX script:

After creating the * .py file, you need to add the execution path of python to the source code header, such as "#! / usr/bin/python". Among them, "#!" It is called "hash bang". After that, change the text permission to an executable file before executing:

$chmod + x * .py$. / * .py

Note: 1. If you can't find the python execution path, enter $which python to view; 2. Another more applicable method is to add an env program to find the python path automatically, such as rewriting the first line to "#! / usr/bin/env python". This method is convenient for cross-platform execution of the program, but the premise is to ensure the path of env; if you don't know the path of env, enter $which env to view it.

3. Module loading and reloading:

Module: an encapsulation of a group of variable names, and a module corresponds to a separate "namespace". After the module is loaded, the object is accessed through object.attribute. You can think of a module as a "package". The advantage of this is that all the code dealing with the same problem is packaged so that it can be used over and over again. The module concept provided by python solves the problem of repeating variable names very well, because even if the variable names are the same, because the module names are different, they can still be distinguished (much like the "double colon" operator in the R language, package::function).

Load: import mymoduel or from mymodule import object; another way to use execfile ('mymodule.py').

Overload: use the load () function, such as load (mymodule).

Note: 1. Import/from/load () does not need to specify the module suffix, which also implies that the module needs to be in the current running directory; 2. After import/from, import/from again does not work. Similarly, there is no import/from (the second time) after modifying the module. This is, and needs to be loaded with load (). Execfile () does not have this problem.

4. The best thing to do:

Configure the python runtime environment in emacs.

Thank you for reading! After reading the above, do you have a general idea of how to run python in linux? I hope the content of the article will be helpful to all of you. If you want to know more about the relevant articles, you are welcome to follow the industry information channel.

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