An example regex is r"^(From|To|Cc).*?python-list@python.org"
- the caret ^ matches text at the beginning of a line. - the part with (From|To|Cc) means that the line has to start with one of the words that are separated by the pipe | - The .*? means to un-greedily match any number of characters, except the newline \n character. The un-greedy part means to match as few repetitions as possible. The . character means any non-newline character, the * means to repeat 0 or more times, and the ? character makes it un-greedy.
declare a list
ReplyDeletelist = []
declare a dictionary
dic = {}
Regular Expressions in Python
ReplyDeleteAn example regex is r"^(From|To|Cc).*?python-list@python.org"
- the caret ^ matches text at the beginning of a line.
- the part with (From|To|Cc) means that the line has to start with one of the words that are separated by the pipe |
- The .*? means to un-greedily match any number of characters, except the newline \n character. The un-greedy part means to match as few repetitions as possible. The . character means any non-newline character, the * means to repeat 0 or more times, and the ? character makes it un-greedy.