`TypeError: missing 1 required positional argument: 'self'` Whitebox tools
Question:
I am attempting to use whitebox geospatial tools to analyze .tif files. Any whitebox tool I run however, raises the error: TypeError: missing 1 required positional argument: 'self'. I understand that this is a well-documented error within the stack overflow community, however, the way I understand the self argument, it is used in the creation of a class, which I am not doing as far as I can tell.
Additionally, upon the addition of the argument in an attempt to resolve the issue as various other stack answers have suggested, I receive a name error, stating that ‘self’ is not defined. Both cases are exemplified bellow.
Code:
from whitebox_tools import WhiteboxTools as wbt
print(wbt.list_tools())
Result:
TypeError: list_tools() missing 1 required positional argument: 'self'
Code (self argument added):
print(wbt.list_tools(self))
Result:
NameError: name 'self' is not defined
Please excuse my lack of understanding of the self argument. It stems from a further lack of understanding of Python classes. Either way, any resolution to this problem I can find has been to add the self argument which does not seem to work in this case.
Thank you for considering.
Answers:
"TypeError: missing 1 required positional argument: ‘self’" generally tends to mean you’re attempting to call an instance method directly on a class.
WhiteboxTools looks like a class. You’re importing it with an alias that makes it look like an instance, and attempting to use it as one.
Don’t do that, but just instantiate an object of that class:
from whitebox_tools import WhiteboxTools
wbt = WhiteboxTools()
print(wbt.list_tools())
I am attempting to use whitebox geospatial tools to analyze .tif files. Any whitebox tool I run however, raises the error: TypeError: missing 1 required positional argument: 'self'. I understand that this is a well-documented error within the stack overflow community, however, the way I understand the self argument, it is used in the creation of a class, which I am not doing as far as I can tell.
Additionally, upon the addition of the argument in an attempt to resolve the issue as various other stack answers have suggested, I receive a name error, stating that ‘self’ is not defined. Both cases are exemplified bellow.
Code:
from whitebox_tools import WhiteboxTools as wbt
print(wbt.list_tools())
Result:
TypeError: list_tools() missing 1 required positional argument: 'self'
Code (self argument added):
print(wbt.list_tools(self))
Result:
NameError: name 'self' is not defined
Please excuse my lack of understanding of the self argument. It stems from a further lack of understanding of Python classes. Either way, any resolution to this problem I can find has been to add the self argument which does not seem to work in this case.
Thank you for considering.
"TypeError: missing 1 required positional argument: ‘self’" generally tends to mean you’re attempting to call an instance method directly on a class.
WhiteboxTools looks like a class. You’re importing it with an alias that makes it look like an instance, and attempting to use it as one.
Don’t do that, but just instantiate an object of that class:
from whitebox_tools import WhiteboxTools
wbt = WhiteboxTools()
print(wbt.list_tools())