What does ‘wb’ mean in this code, using Python?

File mode, write and binary. Since you are writing a .jpg file, it looks fine.

But if you supposed to read that jpg file you need to use 'rb'

More info

On Windows, ‘b’ appended to the mode opens the file in binary mode, so there are also modes like ‘rb’, ‘wb’, and ‘r+b’. Python on Windows makes a distinction between text and binary files; the end-of-line characters in text files are automatically altered slightly when data is read or written. This behind-the-scenes modification to file data is fine for ASCII text files, but it’ll corrupt binary data like that in JPEG or EXE files.

Related Posts:

  1. Python -How to solve OSError: [Errno 22] Invalid argument
  2. How do I copy a file in Python?
  3. How do I copy a file in Python?
  4. How to open a file using the open with statement
  5. Using “with open() as file” method, how to write more than once? [duplicate]
  6. What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
  7. Python integer incrementing with ++ [duplicate]
  8. How to read a file line-by-line into a list?
  9. TypeError: a bytes-like object is required, not ‘str’ when writing to a file in Python3
  10. What is the result of % in Python?
  11. What does “while True” mean in Python?
  12. Confused by python file mode “w+”
  13. File open and close in python
  14. Do I understand os.walk right?
  15. FileNotFoundError: [Errno 2] No such file or directory [duplicate]
  16. How to move a file in Python?
  17. IndentationError: unexpected indent error
  18. Python open() gives FileNotFoundError/IOError: Errno 2 No such file or directory
  19. Putting a simple if-then-else statement on one line [duplicate]
  20. FileNotFoundError: [Errno 2] No such file or directory
  21. How can I do a line break (line continuation)?
  22. How to move a file in Python?
  23. What is the difference between {} and [] in python?
  24. syntaxerror: “unexpected character after line continuation character in python” math
  25. How do you append to a file?
  26. syntaxerror: “unexpected character after line continuation character in python” math
  27. `from … import` vs `import .` [duplicate]
  28. Writing a list to a file with Python
  29. Why do I get “Pickle – EOFError: Ran out of input” reading an empty file?
  30. syntaxerror: “unexpected character after line continuation character in python” math
  31. What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
  32. How do I copy a file in Python?
  33. How do you express binary literals in Python?
  34. Can someone explain __all__ in Python?
  35. How to exit a loop in Python?
  36. How can I do a line break (line continuation) in Python?
  37. What does the /= operator mean in Python?
  38. How do I check whether a file exists without exceptions?
  39. Python: SyntaxError: keyword can’t be an expression
  40. Python error message io.UnsupportedOperation: not readable
  41. Call a function from another file?
  42. Writing a list to a file with Python
  43. How can I check file size in Python?
  44. What do >> and << mean in Python?
  45. What does \x00 mean in binary file?
  46. Python list directory, subdirectory, and files
  47. Where does this come from: -*- coding: utf-8 -*-
  48. Open file in a relative location in Python
  49. Is there a difference between `continue` and `pass` in a for loop in python?
  50. Why am I getting a FileNotFoundError?
  51. Python: Write array values into file
  52. What does `<>` mean in Python?
  53. Importing variables from another file?
  54. How to normalize a 2-dimensional numpy array in python less verbose?
  55. SyntaxError invalid token
  56. How to copy files?
  57. What is the difference between ‘/’ and ‘//’ when used for division?
  58. Flask raises TemplateNotFound error even though template file exists
  59. importing external “.txt” file in python
  60. Search and replace a line in a file in Python
  61. How to save a dictionary to a file?
  62. How to open a file for both reading and writing?
  63. How do you read a file into a list in Python?
  64. What does the “at” (@) symbol do in Python?
  65. SSL error : routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed
  66. What is :: (double colon) in Python when subscripting sequences?
  67. What is the perfect counterpart in Python for “while not EOF”
  68. Printing variables in Python 3.4
  69. What’s the u prefix in a Python string?
  70. What does sys.stdin read?
  71. How to read the last line of a file in Python?
  72. .write not working in Python
  73. Creating files and directories via Python
  74. How to convert a file into a dictionary?
  75. System.ComponentModel.Win32Exception (0x80004005): Access is denied on ixwebhosting
  76. Error “‘type’ object has no attribute ‘__getitem__'” when iterating over list[“a”,”b”,”c”]
  77. How to delete a specific line in a file?
  78. Python def function: How do you specify the end of the function?
  79. Python read in string from file and split it into values
  80. No Multiline Lambda in Python: Why not?
  81. C++ Filehandling: Difference between ios::app and ios::ate?
  82. How often does python flush to a file?
  83. How to open every file in a folder
  84. Inline for loop
  85. TypeError: expected str, bytes or os.PathLike object, not _io.TextIOWrapper
  86. Loading and parsing a JSON file with multiple JSON objects
  87. How to find out whether a file is at its `eof`?
  88. Python def marked as invalid syntax
  89. Get file version in PowerShell
  90. Python IOError: File not open for reading
  91. bash: syntax error near unexpected token `(‘ – Python
  92. Difference between java.io.PrintWriter and java.io.BufferedWriter?
  93. DataFrame constructor not properly called! error
  94. OSError: [WinError 193] %1 is not a valid Win32 application
  95. Get total of Pandas column
  96. Pandas – DataFrame object is not callable
  97. “SyntaxError: non-keyword arg after keyword arg” Error in Python when using requests.post()
  98. Flask Error: “Method Not Allowed The method is not allowed for the requested URL”
  99. Pandas: sum up multiple columns into one column without last column
  100. Simplify Chained Comparison

Leave a Comment