Non-iterable value used in an iterating context PYL-E1133
Bug risk
Critical
a year ago
—
a year old
Non-iterable value numba.prange(height) is used in an iterating context
101):
102 # foreach pixel in the screen array using numba parallel
103 for x in numba.prange(width - menu_width):
104 for y in numba.prange(height):105 # define the complex number based on the pixel coordinates, zoom and offset
106 c = (x - offset[0]) * zoom + 1j * (y - offset[1]) * zoom
107 # define the initial value of z and the number of iterationsNon-iterable value numba.prange(width - menu_width) is used in an iterating context
100 lightness: float = 0.5,
101):
102 # foreach pixel in the screen array using numba parallel
103 for x in numba.prange(width - menu_width):104 for y in numba.prange(height):
105 # define the complex number based on the pixel coordinates, zoom and offset
106 c = (x - offset[0]) * zoom + 1j * (y - offset[1]) * zoomNon-iterable value numba.prange(height) is used in an iterating context
64):
65 # foreach pixel in the screen array using numba parallel
66 for x in numba.prange(width - menu_width):
67 for y in numba.prange(height): 68 # define the complex number based on the pixel coordinates, zoom and offset
69 z = (x - offset[0]) * zoom + 1j * (y - offset[1]) * zoom
70 # number of iterationsNon-iterable value numba.prange(width - menu_width) is used in an iterating context
63 lightness: float = 0.5,
64):
65 # foreach pixel in the screen array using numba parallel
66 for x in numba.prange(width - menu_width): 67 for y in numba.prange(height):
68 # define the complex number based on the pixel coordinates, zoom and offset
69 z = (x - offset[0]) * zoom + 1j * (y - offset[1]) * zoomNon-iterable value numba.prange(width - menu_width) is used in an iterating context
100 lightness: float = 0.5,
101):
102 # foreach pixel in the screen array using numba parallel
103 for x in numba.prange(width - menu_width):104 for y in numba.prange(height):
105 # define the complex number based on the pixel coordinates, zoom and offset
106 c = (x - offset[0]) * zoom + 1j * (y - offset[1]) * zoom
Description
A non-iterable value is being used in an iterating context, For example, a non-iterable value being passed into a for loop. This will raise a TypeError.
Bad practice
Using a non-iterable as object in a loop.
def fx(val=None):
return val
seq = fx()
for val in seq:
print(val)
Because seq would be None which is not an iterable, this code snippet will raise an error.
Recommended
Make sure only an iterable is passed to the iterator.
In our example, tweaking fx to always return an iterable will fix the problem:
def fx(val=None):
val = val or []
return val
seq = fx()
for val in seq:
print(val)