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A function call must supply an argument for each parameter that does not have a default value defined, so:
The minimum number of arguments is the number of parameters without default values.
The maximum number of arguments is the total number of parameters, unless the function takes a varargs (starred) parameter in which case there is no limit.
If there are too few arguments then check to see which arguments have been omitted and supply values for those.
If there are too many arguments then check to see if any have been added by mistake and remove those.
Also check where a comma has been inserted instead of an operator or a dot. For example, the code is obj,attr when it should be obj.attr.
If it is not clear which are the missing or surplus arguments, then this suggests a logical error. The fix will then depend on the nature of the error.
Python Glossary: Arguments.
Python Glossary: Parameters.
Python Programming FAQ: What is the difference between arguments and parameters?.
Common Weakness Enumeration: CWE-685.