indentationerror 3a unindent does not match any outer indentation level

1# Error:
2IndentationError: unindent does not match any outer indentation level
3
4# Explanation:
5# This error usually comes up when you are using a mix of spaces and
6# tabs for indentation in Python (which is often caused by copy-pasting
7# code from somewhere else). To fix, convert all tabs to 4 spaces in
8# your text editor. E.g. in Atom, the 'Whitespace: Convert Tabs to 
9# Spaces' command that you can find with Cmd+Shift+P works nicely. 
10
11# Note, the PEP8 style guide for Python recommends using 4 spaces for 
12# 	indentation instead of tabs. You may need to change the space/tab
13# 	settings in your text editor if it's set to auto-convert any of these
14# 	characters. 

1# usually use 4 spaces to indent (don't mix with TABs or IndentationError)
2j = 1
3site = 'cg'
4while(j<= 1):
5    if site == 'cg': 
6        print('okay') 
7    else: 
8        print('retry') 
9    j += 1
10    print ('j: ' + str(j))
11print('Done') 					# okay          j: 2        Done

1"""You have to check the space before each instruction after a condition
2The space shall not be composed of little spaces (---) but with long identation
3Ex:
4"""
5#Good position
6if x==1:
7  print("Ok")
8
9#Wrong position
10if X==2:
11 print("Erreur")