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Title: re — Regular expression operations — Python 3.15.0a5 documentation

Open Graph Title: re — Regular expression operations

Description: Source code: Lib/re/ This module provides regular expression matching operations similar to those found in Perl. Both patterns and strings to be searched can be Unicode strings ( str) as well as 8-...

Open Graph Description: Source code: Lib/re/ This module provides regular expression matching operations similar to those found in Perl. Both patterns and strings to be searched can be Unicode strings ( str) as well as 8-...

Opengraph URL: https://docs.python.org/3/library/re.html

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og:image:alt	Source code: Lib/re/ This module provides regular expression matching operations similar to those found in Perl. Both patterns and strings to be searched can be Unicode strings ( str) as well as 8-...
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Links:

	https://www.python.org/
Table of Contents	https://docs.python.org/dev/contents.html
re — Regular expression operations	https://docs.python.org/dev/library/re.html
Regular Expression Syntax	https://docs.python.org/dev/library/re.html#regular-expression-syntax
Module Contents	https://docs.python.org/dev/library/re.html#module-contents
Flags	https://docs.python.org/dev/library/re.html#flags
Functions	https://docs.python.org/dev/library/re.html#functions
Exceptions	https://docs.python.org/dev/library/re.html#exceptions
Regular Expression Objects	https://docs.python.org/dev/library/re.html#regular-expression-objects
Match Objects	https://docs.python.org/dev/library/re.html#match-objects
Regular Expression Examples	https://docs.python.org/dev/library/re.html#regular-expression-examples
Checking for a Pair	https://docs.python.org/dev/library/re.html#checking-for-a-pair
Simulating scanf()	https://docs.python.org/dev/library/re.html#simulating-scanf
search() vs. match()	https://docs.python.org/dev/library/re.html#search-vs-match
Making a Phonebook	https://docs.python.org/dev/library/re.html#making-a-phonebook
Text Munging	https://docs.python.org/dev/library/re.html#text-munging
Finding all Adverbs	https://docs.python.org/dev/library/re.html#finding-all-adverbs
Finding all Adverbs and their Positions	https://docs.python.org/dev/library/re.html#finding-all-adverbs-and-their-positions
Raw String Notation	https://docs.python.org/dev/library/re.html#raw-string-notation
Writing a Tokenizer	https://docs.python.org/dev/library/re.html#writing-a-tokenizer
string.templatelib — Support for template string literals	https://docs.python.org/dev/library/string.templatelib.html
difflib — Helpers for computing deltas	https://docs.python.org/dev/library/difflib.html
Report a bug	https://docs.python.org/dev/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/library/re.rst?plain=1
index	https://docs.python.org/dev/genindex.html
modules	https://docs.python.org/dev/py-modindex.html
next	https://docs.python.org/dev/library/difflib.html
previous	https://docs.python.org/dev/library/string.templatelib.html
Python	https://www.python.org/
3.15.0a5 Documentation	https://docs.python.org/dev/index.html
The Python Standard Library	https://docs.python.org/dev/library/index.html
Text Processing Services	https://docs.python.org/dev/library/text.html
re — Regular expression operations	https://docs.python.org/dev/library/re.html
¶	https://docs.python.org/dev/library/re.html#module-re
Lib/re/	https://github.com/python/cpython/tree/main/Lib/re/
str	https://docs.python.org/dev/library/stdtypes.html#str
bytes	https://docs.python.org/dev/library/stdtypes.html#bytes
SyntaxWarning	https://docs.python.org/dev/library/exceptions.html#SyntaxWarning
SyntaxError	https://docs.python.org/dev/library/exceptions.html#SyntaxError
compiled regular expressions	https://docs.python.org/dev/library/re.html#re-objects
regex	https://pypi.org/project/regex/
re	https://docs.python.org/dev/library/re.html#module-re
¶	https://docs.python.org/dev/library/re.html#regular-expression-syntax
[Frie09]	https://docs.python.org/dev/library/re.html#frie09
Regular Expression HOWTO	https://docs.python.org/dev/howto/regex.html#regex-howto
DOTALL	https://docs.python.org/dev/library/re.html#re.DOTALL
MULTILINE	https://docs.python.org/dev/library/re.html#re.MULTILINE
MULTILINE	https://docs.python.org/dev/library/re.html#re.MULTILINE
MULTILINE	https://docs.python.org/dev/library/re.html#re.MULTILINE
Unicode Technical Standard #18	https://unicode.org/reports/tr18/
FutureWarning	https://docs.python.org/dev/library/exceptions.html#FutureWarning
FutureWarning	https://docs.python.org/dev/library/exceptions.html#FutureWarning
re.A	https://docs.python.org/dev/library/re.html#re.A
re.I	https://docs.python.org/dev/library/re.html#re.I
re.L	https://docs.python.org/dev/library/re.html#re.L
re.M	https://docs.python.org/dev/library/re.html#re.M
re.S	https://docs.python.org/dev/library/re.html#re.S
re.U	https://docs.python.org/dev/library/re.html#re.U
re.X	https://docs.python.org/dev/library/re.html#re.X
Module Contents	https://docs.python.org/dev/library/re.html#contents-of-module-re
re.compile()	https://docs.python.org/dev/library/re.html#re.compile
re.A	https://docs.python.org/dev/library/re.html#re.A
re.I	https://docs.python.org/dev/library/re.html#re.I
re.L	https://docs.python.org/dev/library/re.html#re.L
re.M	https://docs.python.org/dev/library/re.html#re.M
re.S	https://docs.python.org/dev/library/re.html#re.S
re.U	https://docs.python.org/dev/library/re.html#re.U
re.X	https://docs.python.org/dev/library/re.html#re.X
Module Contents	https://docs.python.org/dev/library/re.html#contents-of-module-re
bytes	https://docs.python.org/dev/library/stdtypes.html#bytes
bytes	https://docs.python.org/dev/library/stdtypes.html#bytes
search()	https://docs.python.org/dev/library/re.html#re.search
match()	https://docs.python.org/dev/library/re.html#re.match
bytes	https://docs.python.org/dev/library/stdtypes.html#bytes
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
LOCALE	https://docs.python.org/dev/library/re.html#re.LOCALE
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
LOCALE	https://docs.python.org/dev/library/re.html#re.LOCALE
[Nd]	https://www.unicode.org/versions/Unicode15.0.0/ch04.pdf#G134153
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
str.isspace()	https://docs.python.org/dev/library/stdtypes.html#str.isspace
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
str.isalnum()	https://docs.python.org/dev/library/stdtypes.html#str.isalnum
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
LOCALE	https://docs.python.org/dev/library/re.html#re.LOCALE
str.isalnum()	https://docs.python.org/dev/library/stdtypes.html#str.isalnum
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
LOCALE	https://docs.python.org/dev/library/re.html#re.LOCALE
escape sequences	https://docs.python.org/dev/reference/lexical_analysis.html#escape-sequences
¶	https://docs.python.org/dev/library/re.html#module-contents
¶	https://docs.python.org/dev/library/re.html#flags
RegexFlag	https://docs.python.org/dev/library/re.html#re.RegexFlag
enum.IntFlag	https://docs.python.org/dev/library/enum.html#enum.IntFlag
¶	https://docs.python.org/dev/library/re.html#re.RegexFlag
enum.IntFlag	https://docs.python.org/dev/library/enum.html#enum.IntFlag
¶	https://docs.python.org/dev/library/re.html#re.A
¶	https://docs.python.org/dev/library/re.html#re.ASCII
U	https://docs.python.org/dev/library/re.html#re.U
UNICODE	https://docs.python.org/dev/library/re.html#re.UNICODE
¶	https://docs.python.org/dev/library/re.html#re.DEBUG
¶	https://docs.python.org/dev/library/re.html#re.I
¶	https://docs.python.org/dev/library/re.html#re.IGNORECASE
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
LOCALE	https://docs.python.org/dev/library/re.html#re.LOCALE
IGNORECASE	https://docs.python.org/dev/library/re.html#re.IGNORECASE
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
¶	https://docs.python.org/dev/library/re.html#re.L
¶	https://docs.python.org/dev/library/re.html#re.LOCALE
LOCALE	https://docs.python.org/dev/library/re.html#re.LOCALE
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
LOCALE	https://docs.python.org/dev/library/re.html#re.LOCALE
¶	https://docs.python.org/dev/library/re.html#re.M
¶	https://docs.python.org/dev/library/re.html#re.MULTILINE
¶	https://docs.python.org/dev/library/re.html#re.NOFLAG
¶	https://docs.python.org/dev/library/re.html#re.S
¶	https://docs.python.org/dev/library/re.html#re.DOTALL
¶	https://docs.python.org/dev/library/re.html#re.U
¶	https://docs.python.org/dev/library/re.html#re.UNICODE
ASCII	https://docs.python.org/dev/library/re.html#re.ASCII
¶	https://docs.python.org/dev/library/re.html#re.X
¶	https://docs.python.org/dev/library/re.html#re.VERBOSE
¶	https://docs.python.org/dev/library/re.html#functions
¶	https://docs.python.org/dev/library/re.html#re.compile
regular expression object	https://docs.python.org/dev/library/re.html#re-objects
match()	https://docs.python.org/dev/library/re.html#re.Pattern.match
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
flags	https://docs.python.org/dev/library/re.html#flags
re.compile()	https://docs.python.org/dev/library/re.html#re.compile
re.compile()	https://docs.python.org/dev/library/re.html#re.compile
¶	https://docs.python.org/dev/library/re.html#re.search
Match	https://docs.python.org/dev/library/re.html#re.Match
flags	https://docs.python.org/dev/library/re.html#flags
¶	https://docs.python.org/dev/library/re.html#re.match
Match	https://docs.python.org/dev/library/re.html#re.Match
MULTILINE	https://docs.python.org/dev/library/re.html#re.MULTILINE
re.match()	https://docs.python.org/dev/library/re.html#re.match
search()	https://docs.python.org/dev/library/re.html#re.search
search() vs. match()	https://docs.python.org/dev/library/re.html#search-vs-match
flags	https://docs.python.org/dev/library/re.html#flags
¶	https://docs.python.org/dev/library/re.html#re.fullmatch
Match	https://docs.python.org/dev/library/re.html#re.Match
flags	https://docs.python.org/dev/library/re.html#flags
¶	https://docs.python.org/dev/library/re.html#re.split
flags	https://docs.python.org/dev/library/re.html#flags
keyword-only parameters	https://docs.python.org/dev/glossary.html#keyword-only-parameter
¶	https://docs.python.org/dev/library/re.html#re.findall
flags	https://docs.python.org/dev/library/re.html#flags
¶	https://docs.python.org/dev/library/re.html#re.finditer
iterator	https://docs.python.org/dev/glossary.html#term-iterator
Match	https://docs.python.org/dev/library/re.html#re.Match
flags	https://docs.python.org/dev/library/re.html#flags
¶	https://docs.python.org/dev/library/re.html#re.sub
Match	https://docs.python.org/dev/library/re.html#re.Match
Pattern	https://docs.python.org/dev/library/re.html#re.Pattern
flags	https://docs.python.org/dev/library/re.html#flags
bytes	https://docs.python.org/dev/library/stdtypes.html#bytes
keyword-only parameters	https://docs.python.org/dev/glossary.html#keyword-only-parameter
¶	https://docs.python.org/dev/library/re.html#re.subn
sub()	https://docs.python.org/dev/library/re.html#re.sub
flags	https://docs.python.org/dev/library/re.html#flags
¶	https://docs.python.org/dev/library/re.html#re.escape
sub()	https://docs.python.org/dev/library/re.html#re.sub
subn()	https://docs.python.org/dev/library/re.html#re.subn
¶	https://docs.python.org/dev/library/re.html#re.purge
¶	https://docs.python.org/dev/library/re.html#exceptions
¶	https://docs.python.org/dev/library/re.html#re.PatternError
¶	https://docs.python.org/dev/library/re.html#re.PatternError.msg
¶	https://docs.python.org/dev/library/re.html#re.PatternError.pattern
¶	https://docs.python.org/dev/library/re.html#re.PatternError.pos
¶	https://docs.python.org/dev/library/re.html#re.PatternError.lineno
¶	https://docs.python.org/dev/library/re.html#re.PatternError.colno
¶	https://docs.python.org/dev/library/re.html#regular-expression-objects
¶	https://docs.python.org/dev/library/re.html#re.Pattern
re.compile()	https://docs.python.org/dev/library/re.html#re.compile
re.Pattern	https://docs.python.org/dev/library/re.html#re.Pattern
Generic Alias Type	https://docs.python.org/dev/library/stdtypes.html#types-genericalias
¶	https://docs.python.org/dev/library/re.html#re.Pattern.search
Match	https://docs.python.org/dev/library/re.html#re.Match
¶	https://docs.python.org/dev/library/re.html#re.Pattern.match
Match	https://docs.python.org/dev/library/re.html#re.Match
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
search() vs. match()	https://docs.python.org/dev/library/re.html#search-vs-match
¶	https://docs.python.org/dev/library/re.html#re.Pattern.fullmatch
Match	https://docs.python.org/dev/library/re.html#re.Match
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
¶	https://docs.python.org/dev/library/re.html#re.Pattern.split
split()	https://docs.python.org/dev/library/re.html#re.split
¶	https://docs.python.org/dev/library/re.html#re.Pattern.findall
findall()	https://docs.python.org/dev/library/re.html#re.findall
search()	https://docs.python.org/dev/library/re.html#re.search
¶	https://docs.python.org/dev/library/re.html#re.Pattern.finditer
finditer()	https://docs.python.org/dev/library/re.html#re.finditer
search()	https://docs.python.org/dev/library/re.html#re.search
¶	https://docs.python.org/dev/library/re.html#re.Pattern.sub
sub()	https://docs.python.org/dev/library/re.html#re.sub
¶	https://docs.python.org/dev/library/re.html#re.Pattern.subn
subn()	https://docs.python.org/dev/library/re.html#re.subn
¶	https://docs.python.org/dev/library/re.html#re.Pattern.flags
compile()	https://docs.python.org/dev/library/re.html#re.compile
UNICODE	https://docs.python.org/dev/library/re.html#re.UNICODE
¶	https://docs.python.org/dev/library/re.html#re.Pattern.groups
¶	https://docs.python.org/dev/library/re.html#re.Pattern.groupindex
¶	https://docs.python.org/dev/library/re.html#re.Pattern.pattern
copy.copy()	https://docs.python.org/dev/library/copy.html#copy.copy
copy.deepcopy()	https://docs.python.org/dev/library/copy.html#copy.deepcopy
¶	https://docs.python.org/dev/library/re.html#match-objects
match()	https://docs.python.org/dev/library/re.html#re.Pattern.match
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
¶	https://docs.python.org/dev/library/re.html#re.Match
re.Match	https://docs.python.org/dev/library/re.html#re.Match
Generic Alias Type	https://docs.python.org/dev/library/stdtypes.html#types-genericalias
¶	https://docs.python.org/dev/library/re.html#re.Match.expand
sub()	https://docs.python.org/dev/library/re.html#re.Pattern.sub
¶	https://docs.python.org/dev/library/re.html#re.Match.group
IndexError	https://docs.python.org/dev/library/exceptions.html#IndexError
IndexError	https://docs.python.org/dev/library/exceptions.html#IndexError
¶	https://docs.python.org/dev/library/re.html#re.Match.__getitem__
¶	https://docs.python.org/dev/library/re.html#re.Match.groups
¶	https://docs.python.org/dev/library/re.html#re.Match.groupdict
¶	https://docs.python.org/dev/library/re.html#re.Match.start
¶	https://docs.python.org/dev/library/re.html#re.Match.end
IndexError	https://docs.python.org/dev/library/exceptions.html#IndexError
¶	https://docs.python.org/dev/library/re.html#re.Match.span
¶	https://docs.python.org/dev/library/re.html#re.Match.pos
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
match()	https://docs.python.org/dev/library/re.html#re.Pattern.match
regex object	https://docs.python.org/dev/library/re.html#re-objects
¶	https://docs.python.org/dev/library/re.html#re.Match.endpos
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
match()	https://docs.python.org/dev/library/re.html#re.Pattern.match
regex object	https://docs.python.org/dev/library/re.html#re-objects
¶	https://docs.python.org/dev/library/re.html#re.Match.lastindex
¶	https://docs.python.org/dev/library/re.html#re.Match.lastgroup
¶	https://docs.python.org/dev/library/re.html#re.Match.re
regular expression object	https://docs.python.org/dev/library/re.html#re-objects
match()	https://docs.python.org/dev/library/re.html#re.Pattern.match
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
¶	https://docs.python.org/dev/library/re.html#re.Match.string
match()	https://docs.python.org/dev/library/re.html#re.Pattern.match
search()	https://docs.python.org/dev/library/re.html#re.Pattern.search
copy.copy()	https://docs.python.org/dev/library/copy.html#copy.copy
copy.deepcopy()	https://docs.python.org/dev/library/copy.html#copy.deepcopy
¶	https://docs.python.org/dev/library/re.html#regular-expression-examples
¶	https://docs.python.org/dev/library/re.html#checking-for-a-pair
group()	https://docs.python.org/dev/library/re.html#re.Match.group
¶	https://docs.python.org/dev/library/re.html#simulating-scanf
¶	https://docs.python.org/dev/library/re.html#search-vs-match
re.match()	https://docs.python.org/dev/library/re.html#re.match
re.search()	https://docs.python.org/dev/library/re.html#re.search
re.fullmatch()	https://docs.python.org/dev/library/re.html#re.fullmatch
search()	https://docs.python.org/dev/library/re.html#re.search
MULTILINE	https://docs.python.org/dev/library/re.html#re.MULTILINE
match()	https://docs.python.org/dev/library/re.html#re.match
search()	https://docs.python.org/dev/library/re.html#re.search
¶	https://docs.python.org/dev/library/re.html#making-a-phonebook
split()	https://docs.python.org/dev/library/re.html#re.split
split()	https://docs.python.org/dev/library/re.html#re.split
¶	https://docs.python.org/dev/library/re.html#text-munging
sub()	https://docs.python.org/dev/library/re.html#re.sub
sub()	https://docs.python.org/dev/library/re.html#re.sub
¶	https://docs.python.org/dev/library/re.html#finding-all-adverbs
findall()	https://docs.python.org/dev/library/re.html#re.findall
search()	https://docs.python.org/dev/library/re.html#re.search
findall()	https://docs.python.org/dev/library/re.html#re.findall
¶	https://docs.python.org/dev/library/re.html#finding-all-adverbs-and-their-positions
finditer()	https://docs.python.org/dev/library/re.html#re.finditer
Match	https://docs.python.org/dev/library/re.html#re.Match
finditer()	https://docs.python.org/dev/library/re.html#re.finditer
¶	https://docs.python.org/dev/library/re.html#raw-string-notation
¶	https://docs.python.org/dev/library/re.html#writing-a-tokenizer
tokenizer or scanner	https://en.wikipedia.org/wiki/Lexical_analysis
Frie09	https://docs.python.org/dev/library/re.html#id1
Table of Contents	https://docs.python.org/dev/contents.html
re — Regular expression operations	https://docs.python.org/dev/library/re.html
Regular Expression Syntax	https://docs.python.org/dev/library/re.html#regular-expression-syntax
Module Contents	https://docs.python.org/dev/library/re.html#module-contents
Flags	https://docs.python.org/dev/library/re.html#flags
Functions	https://docs.python.org/dev/library/re.html#functions
Exceptions	https://docs.python.org/dev/library/re.html#exceptions
Regular Expression Objects	https://docs.python.org/dev/library/re.html#regular-expression-objects
Match Objects	https://docs.python.org/dev/library/re.html#match-objects
Regular Expression Examples	https://docs.python.org/dev/library/re.html#regular-expression-examples
Checking for a Pair	https://docs.python.org/dev/library/re.html#checking-for-a-pair
Simulating scanf()	https://docs.python.org/dev/library/re.html#simulating-scanf
search() vs. match()	https://docs.python.org/dev/library/re.html#search-vs-match
Making a Phonebook	https://docs.python.org/dev/library/re.html#making-a-phonebook
Text Munging	https://docs.python.org/dev/library/re.html#text-munging
Finding all Adverbs	https://docs.python.org/dev/library/re.html#finding-all-adverbs
Finding all Adverbs and their Positions	https://docs.python.org/dev/library/re.html#finding-all-adverbs-and-their-positions
Raw String Notation	https://docs.python.org/dev/library/re.html#raw-string-notation
Writing a Tokenizer	https://docs.python.org/dev/library/re.html#writing-a-tokenizer
string.templatelib — Support for template string literals	https://docs.python.org/dev/library/string.templatelib.html
difflib — Helpers for computing deltas	https://docs.python.org/dev/library/difflib.html
Report a bug	https://docs.python.org/dev/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/library/re.rst?plain=1
index	https://docs.python.org/dev/genindex.html
modules	https://docs.python.org/dev/py-modindex.html
next	https://docs.python.org/dev/library/difflib.html
previous	https://docs.python.org/dev/library/string.templatelib.html
Python	https://www.python.org/
3.15.0a5 Documentation	https://docs.python.org/dev/index.html
The Python Standard Library	https://docs.python.org/dev/library/index.html
Text Processing Services	https://docs.python.org/dev/library/text.html
re — Regular expression operations	https://docs.python.org/dev/library/re.html
Copyright	https://docs.python.org/dev/copyright.html
History and License	https://docs.python.org/license.html
Please donate.	https://www.python.org/psf/donations/
Found a bug	https://docs.python.org/bugs.html
Sphinx	https://www.sphinx-doc.org/

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