Meaning of using commas and underscores with Python assignment operator? [duplicate]

by

d2, = values[s] is just like a,b=f(), except for unpacking 1 element tuples.

>>> T=(1,)
>>> a=T
>>> a
(1,)
>>> b,=T
>>> b
1
>>>

a is tuple, b is an integer.

More Related Contents:

  1. What does the star and doublestar operator mean in a function call?
  2. What do the * (star) and ** (double star) operators mean in a function call?
  3. What do ** (double star/asterisk) and * (star/asterisk) mean in a function call?
  4. The letter ‘n’ is invalid syntax in Python? [closed]
  5. Is there a way to declare all the values in the list as a list individually in python [closed]
  6. What does ** (double star/asterisk) and * (star/asterisk) do for parameters?
  7. What is the difference between ‘/’ and ‘//’ when used for division?
  8. What is the result of % in Python?
  9. Accessing dict keys like an attribute?
  10. Why does adding a trailing comma after a variable name make it a tuple?
  11. How are tuples unpacked in for loops?
  12. Unpacking, extended unpacking and nested extended unpacking
  13. “x not in y” or “not x in y”
  14. What does “while True” mean in Python?
  15. Python “raise from” usage
  16. What does ‘wb’ mean in this code, using Python?
  17. Why isn’t assigning to an empty list (e.g. [] = “”) an error?
  18. Is it possible to get a list of keywords in Python?
  19. Why does python use two underscores for certain things?
  20. What is the purpose of the colon before a block in Python?
  21. The difference between double brace `[[…]]` and single brace `[..]` indexing in Pandas
  22. pandas apply function that returns multiple values to rows in pandas dataframe
  23. How to include a double-quote and/or single-quote character in a raw Python string literal?
  24. How to tell if a string contains valid Python code
  25. Python: Splat/unpack operator * in python cannot be used in an expression?
  26. str.format() raises KeyError
  27. Square braces not required in list comprehensions when used in a function
  28. How can I diagnose common errors in JSON data?
  29. How do I get a decimal value when using the division operator in Python?
  30. Star * operator on left vs right side of an assignment statement

Leave a Comment