python catch all errors

First, batch and shell Directories and documents: Copy Code code as follows: C:\TESTFOLDER\TEST ├─test2 └─test3 Test.txt Delete the directory and all the files under it: Copy Code code as follows: RMDIR/S/q C:\TestFolder\test Deletes files in all directories, but the directory structure cannot be deleted: Copy Code code as follows: del/f/

Exception name Description Baseexception base class for all exceptions Systemexit Interpreter Request exited Keyboardinterrupt User interrupt execution (usually input ^c) Exception base class for general errors Stopiteration There are no more values for iterators Generatorexit Generator (ge

soup.prettify () Index=1 for link in soup.find_all (' a '): New_link=root_link+link.get (' href ') if new_link.endsw ITH (". pdf"): File_path=download_file (NEW_LINK,STR (index)) print "Downloading:" +new_link+ " "+file_path index+=1 print "All download finished" Else:print "errors occur." You can download all PDF documents locally by running the following c

In Python multiple inheritance, take advantage of super (). The parent class method, you can call all the parent classes, so that in the state of the override, the call to all the parent class again!Cases:Print"****** multiple inheritance using super (). __init__ occurrence state ******")ClassParent(object):Def__init__(Self, name, *args, **kwargs):# to avoid mult

This example describes how Python obtains all the files in the directory. Share to everyone for your reference. The specific analysis is as follows: Os.walk () function declaration: Walk (Top,topdown=true,onerror=none) 1. The parameter top indicates the path of the directory tree to traverse 2. The default value of the parameter topdown is "True", which means that the files under the directory tree are