How do I lowercase a string in Python?

Use .lower() – For example:

s = "Kilometer"
print(s.lower())

The official 2.x documentation is here: str.lower()
The official 3.x documentation is here: str.lower()

Related Posts:

  1. How do I get a substring of a string in Python?
  2. Does Python have a string ‘contains’ substring method?
  3. How to read a file line-by-line into a list?
  4. strip(char) on a string
  5. How to convert list to string [duplicate]
  6. TypeError: a bytes-like object is required, not ‘str’ when writing to a file in Python3
  7. Best way to convert string to bytes in Python 3?
  8. Pythonic way to create a long multi-line string
  9. Best way to convert string to bytes in Python 3?
  10. Does Python have a string ‘contains’ substring method?
  11. TypeError: not all arguments converted during string formatting python
  12. ‘str’ object does not support item assignment
  13. How do I append one string to another in Python?
  14. Random string generation with upper case letters and digits
  15. How to read a text file into a string variable and strip newlines?
  16. Convert bytes to a string
  17. How to print like printf in Python3?
  18. How to read a text file into a string variable and strip newlines?
  19. Python convert tuple to string
  20. Why is it string.join(list) instead of list.join(string)?
  21. Split a string into 2 in Python
  22. Best way to strip punctuation from a string
  23. Split string with multiple delimiters in Python [duplicate]
  24. How to check if the string is empty?
  25. How to find all occurrences of a substring?
  26. How do I convert a list of ascii values to a string in python?
  27. Python TypeError: not enough arguments for format string
  28. What does the ‘b’ character do in front of a string literal?
  29. Ignoring upper case and lower case in Java
  30. How to add a string in a certain position?
  31. Check string “None” or “not” in Python 2.7
  32. Remove all special characters, punctuation and spaces from string
  33. This can be done without regex:
  34. How can I concatenate str and int objects?
  35. What does the ‘b’ character do in front of a string literal?
  36. Best way to replace multiple characters in a string?
  37. Convert columns to string in Pandas
  38. How to delete a character from a string using Python
  39. Python: Get the first character of the first string in a list?
  40. How to convert string to binary?
  41. Remove the first character of a string
  42. Convert hex to binary
  43. Quoting backslashes in Python string literals
  44. Python string class like StringBuilder in C#?
  45. AttributeError: ‘list’ object has no attribute ‘replace’ when trying to remove character
  46. Remove all special characters, punctuation and spaces from string
  47. How to check if a string is a substring of items in a list of strings?
  48. Best way to replace multiple characters in a string?
  49. How do I remove a substring from the end of a string?
  50. How can I splice a string?
  51. Detect whether a Python string is a number or a letter
  52. Finding all possible permutations of a given string in python
  53. How do I append one string to another in Python?
  54. AttributeError: ‘list’ object has no attribute ‘replace’ when trying to remove character
  55. ValueError: cannot index with vector containing NA / NaN values
  56. How to convert string to binary?
  57. Converting from a string to boolean in Python?
  58. How to check if type of a variable is string?
  59. How do I format a string using a dictionary in python-3.x?
  60. Removing numbers from string
  61. How do I check if there are duplicates in a flat list?
  62. How to find char in string and get all the indexes?
  63. How can I print variable and string on same line in Python?
  64. Remove quotes from String in Python
  65. Convert hex string to int in Python
  66. How can I check if character in a string is a letter? (Python)
  67. How can I check if character in a string is a letter? (Python)
  68. How can I find the first occurrence of a sub-string in a python string?
  69. How to concatenate items in a list to a single string?
  70. AttributeError: ‘list’ object has no attribute ‘lower’ gensim
  71. Find the nth occurrence of substring in a string
  72. How to convert ‘binary string’ to normal string in Python3?
  73. Properly formatted multiplication table
  74. How to get a function name as a string?
  75. Pandas error “Can only use .str accessor with string values”
  76. Python: Converting string into decimal number
  77. How to compare individual characters in two strings in Python 3
  78. Convert a Unicode string to a string in Python (containing extra symbols)python string unicode type-conversion
  79. How to repeat a string with spaces?
  80. AttributeError: ‘str’ object has no attribute ‘items’
  81. How to pad zeroes to a string?
  82. How does str(list) work?
  83. How do I convert a string to a double in Python?
  84. How can I copy a Python string?
  85. How to strip a specific word from a string?
  86. Split string using a newline delimiter with Python
  87. Checking if a string can be converted to float in Python
  88. Remove specific characters from a string in Python
  89. How to get ° character in a string in python?
  90. Python cant convert ‘list’ object to str error [closed]
  91. Mutable strings in Python
  92. How can I check if a string contains ANY letters from the alphabet?
  93. Cannot concatenate ‘str’ and ‘float’ objects?
  94. How to repeat individual characters in strings in Python
  95. Find index of last occurrence of a substring in a string
  96. When to use %r instead of %s in Python? [duplicate]
  97. How to convert a string to lower or upper case in Ruby
  98. Python convert tuple to string
  99. Python – difference between two strings
  100. TypeError: coercing to Unicode: need string or buffer

Leave a Comment