Python help for help

Source: Internet
Author: User

Http://woodpecker.org.cn/abyteofpython_cn/chinese/ch03s06.html

1.

If you need quick help for a Python function or statement, you can use the built-in help function. Especially when you use a command line with a prompt, it is very useful. For example, run help (str) -- this will display the help of the str class. The str class is used to save various text (strings) used by your program ). The class will be explained in detail in the next chapter of object-oriented programming.

Press q to exit the help.
Similarly, you can obtain information about almost everything in Python. Use help () to learn more about help!

Help ('print ')
You should have noticed that I use quotation marks on "print" so that Python can understand that I want to get help on "print" instead of asking for something to print.

Http://askubuntu.com/questions/230994/python-2-7-no-documentation-found-when-typing-helpprint

2.

Question:

I have just installed Python 2.7 and Python 3.2 on my Ubuntu 12.04 (32 bit ).

However if I open a Python 2.7 shell (python from a terminal) when I type help ('print') I get the following message:
No documentation found for 'print'

How can I get to use the documentation in Python 2.7 as well?

Answer:

This looks like a bug of Python 2 as something like help ("dir") works properly. it probably does not work because print is a special keyword, unlike Python 3. stick to Python 3 or run the following command instead of help ("print "):

Help ("_ builtin _. print ")

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