Python: Quote String

By Xah Lee. Date: . Last updated: .

Quote String

Use single quote or double quote.

# python 3

a = "this "
b = 'and that'
print(a, b)

String Escape

Use \n for linebreak, and \t for tab.

# python 3

a = "this\nthat\n"    # use \n for line-break

b = 'more\nthings'    # single quote works too

print(a, b)

# output:

# this
# that
#  more
# things

Here's complete list of escape sequence:

Raw string (No Backslash Escape)

Add r in front of the quote symbol. This way, backslash characters will be interpreted as is, not as escapes. (“r” for “raw”)

# python 3

c = r"this \n and that"

print(c) # prints a single line

Quote Multi-Lines

To quote a string of multiple lines, use triple quotes.

# python 3

d = """this
will be printed
in 3 lines"""

print(d)

# output:

# this
# will be printed
# in 3 lines

Summary

Python 2: If your string contain literal Unicode chars, such as α, then prefix your string with “u”, like this: u"greek α". But you also need to add a declaration #-*- coding: utf-8 -*-. The “r” and “u” can be combined, like this: ur"I ♥ Python" See: Python: Unicode Tutorial 🐍.

Python 2, String Containing Unicode

Add u in front of the quote symbol if you string contains unicode characters. e.g. u"I ♥ U". It can be combined with r, e.g. ur"/I ♥ U/", and can also used in front of triple quote.

# -*- coding: utf-8 -*-
# python 2

# raw string
s1 = r"a\nb"

print(len(s1) == 4) # True
# -*- coding: utf-8 -*-
# python 2

s2 = ur"/I♥U/"

print len(s2) == 5 # True

Python String

  1. Quote String
  2. String Methods
  3. Format String

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Python

  1. Python 3 Basics
  2. Python 2 Basics
  3. Python 2 and 3 Difference
  4. Print Version
  5. Builtin Help
  6. Quote String
  7. String Methods
  8. Format String
  9. Operators
  10. Complex Numbers
  11. True, False
  12. if then else
  13. Loop
  14. List Basics
  15. Loop Thru List
  16. Map f to List
  17. Copy Nested List
  18. List Comprehension
  19. List Methods
  20. Sort
  21. Dictionary
  22. Loop Thru Dict
  23. Dict Methods
  24. Tuple
  25. Sets
  26. Function
  27. Closure
  28. 2 Closure
  29. Decorator
  30. Class
  31. Object, ID, Type
  32. List Modules
  33. Write a Module
  34. Unicode 🐍

Regex

  1. Regex Basics
  2. Regex Reference

Text Processing

  1. Read/Write File
  2. Traverse Directory
  3. File Path
  4. Process Unicode
  5. Convert File Encoding
  6. Find Replace in dir
  7. Find Replace by Regex
  8. Count Word Frequency

Web

  1. Send Email
  2. GET Web Page
  3. Web Crawler
  4. HTTP POST

Misc

  1. JSON
  2. Find Script Path
  3. Get Env Var
  4. System Call
  5. Decompress Gzip
  6. Append String in Loop
  7. Timing f timeit
  8. Keyword Arg Default Value Unstable
  9. Check Page Load Size
  10. Thumbnail Generation