__init__() missing 1 required positional argument

by

You’re receiving this error because you did not pass a data variable to the DHT constructor.

aIKid and Alexander’s answers are nice but it wont work because you still have to initialize self.data in the class constructor like this:

class DHT:
   def __init__(self, data=None):
      if data is None:
         data = {}
      else:
         self.data = data
      self.data['one'] = '1'
      self.data['two'] = '2'
      self.data['three'] = '3'
   def showData(self):
      print(self.data)

And then calling the method showData like this:

DHT().showData()

Or like this:

DHT({'six':6,'seven':'7'}).showData()

or like this:

# Build the class first
dht = DHT({'six':6,'seven':'7'})
# The call whatever method you want (In our case only 1 method available)
dht.showData()

More Related Contents:

  1. How to sum all range output in python 3
  2. Python for in range()
  3. __init__() missing 1 required positional argument ‘address’
  4. Why is “1000000000000000 in range(1000000000000001)” so fast in Python 3?
  5. How to install pip with Python 3?
  6. How to solve “error: Microsoft Visual C++ 14.0 or greater is required” when installing Python packages?
  7. How to specify multiple return types using type-hints
  8. Are lists thread-safe?
  9. Relative imports in Python 3
  10. Size of list in memory
  11. Python 3: EOF when reading a line (Sublime Text 2 is angry)
  12. Is there a way to set a default parameter equal to another parameter value?
  13. Why is exponentiation applied right to left?
  14. How can I generate a list of consecutive numbers?
  15. PyEval_InitThreads in Python 3: How/when to call it? (the saga continues ad nauseam)
  16. Prevent creating new attributes outside __init__
  17. Logging to two files with different settings
  18. “RuntimeError: generator raised StopIteration” every time I try to run app
  19. Is it possible to not return anything from a function in python?
  20. “Permission Denied” trying to run Python on Windows 10
  21. Using asyncio.Queue for producer-consumer flow
  22. Are there any reasons not to use an OrderedDict?
  23. Changing one dict changes all dicts in a list of dicts [duplicate]
  24. json.decoder.JSONDecodeError: Extra data: line 2 column 1 (char 190) [duplicate]
  25. In Python, when are two objects the same?
  26. Why isn’t isnumeric working?
  27. Why are str.count(”) and len(str) giving different outputs when used on an empty string?
  28. Convert binary string to bytearray in Python 3
  29. ‘is’ operator behaves unexpectedly with floats
  30. Right-to-Left and Left-to-Right printed nicely

Leave a Comment