hitchhiker s guide to python

:333} Set--DictMap 2 sets to a dictionary by Zip: 123456 Set1 = {1, 2, 3}Set2 = {' a ', ' B ', ' C '} print (dict (Zip (Set1, Set2)) # {1: ' C ', 2: ' A ', 3: ' B '} SETSTR, setThe characters are first cut into tuples and then converted to collections. 1 Print (Set (' Hello ')) # {' L ', ' o ', ' e ', ' H '} Bytes, setThe ASCII decimal value of each byte is taken and the Narimoto group is combined and then weighed.

In Python, you can add a search path through the SYS module, and Sys.path returns a list of all the default route paths (the search order starts from the subscript zero until the end of the package that needs to be imported)Sys.path.insert (subscript, the path of the package) so that the path of the package can be added to the specified subscript (in the specified order)As in the settings.py configuration file in the Django project, you can change the

symbols in the regular expression table, which are flexible ), for friends who are not familiar with programming, it is likely to waste a lot of time in the programming process. today I will introduce regular expressions frequently, and if it is not very special, it will be overwritten. 1. Introduction to regular expressions First, you need to import the regular expression method import re regular expression, which is a powerful tool for processing strings. it has its own processing mec