23 lines
831 B
Python
23 lines
831 B
Python
try:
|
|
from ulab import numpy as np
|
|
except:
|
|
import numpy as np
|
|
|
|
for num in range(1,4):
|
|
for start in range(-num, num+1):
|
|
for end in range(-num, num+1):
|
|
for stride in (-3, -2, -1, 1, 2, 3):
|
|
l = list(range(num))
|
|
a = np.array(l, dtype=np.int8)
|
|
sl = l[start:end:stride]
|
|
ll = len(sl)
|
|
try:
|
|
sa = list(a[start:end:stride])
|
|
except IndexError as e:
|
|
sa = str(e)
|
|
print("%2d [% d:% d:% d] %-24r %-24r%s" % (
|
|
num, start, end, stride, sl, sa, " ***" if sa != sl else ""))
|
|
|
|
a[start:end:stride] = np.ones(len(sl)) * -1
|
|
print("%2d [% d:% d:% d] %r" % (
|
|
num, start, end, stride, list(a)))
|