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import sys
import numpy as np
f2: np.float16
f8: np.float64
c8: np.complex64
# Construction
np.float32(3j) # E: incompatible type
# Technically the following examples are valid NumPy code. But they
# are not considered a best practice, and people who wish to use the
# stubs should instead do
#
# np.array([1.0, 0.0, 0.0], dtype=np.float32)
# np.array([], dtype=np.complex64)
#
# See e.g. the discussion on the mailing list
#
# https://mail.python.org/pipermail/numpy-discussion/2020-April/080566.html
#
# and the issue
#
# https://github.com/numpy/numpy-stubs/issues/41
#
# for more context.
np.float32([1.0, 0.0, 0.0]) # E: incompatible type
np.complex64([]) # E: incompatible type
np.complex64(1, 2) # E: Too many arguments
# TODO: protocols (can't check for non-existent protocols w/ __getattr__)
np.datetime64(0) # E: No overload variant
class A:
def __float__(self):
return 1.0
np.int8(A()) # E: incompatible type
np.int16(A()) # E: incompatible type
np.int32(A()) # E: incompatible type
np.int64(A()) # E: incompatible type
np.uint8(A()) # E: incompatible type
np.uint16(A()) # E: incompatible type
np.uint32(A()) # E: incompatible type
np.uint64(A()) # E: incompatible type
np.void("test") # E: No overload variant
np.void("test", dtype=None) # E: No overload variant
np.generic(1) # E: Cannot instantiate abstract class
np.number(1) # E: Cannot instantiate abstract class
np.integer(1) # E: Cannot instantiate abstract class
np.inexact(1) # E: Cannot instantiate abstract class
np.character("test") # E: Cannot instantiate abstract class
np.flexible(b"test") # E: Cannot instantiate abstract class
np.float64(value=0.0) # E: Unexpected keyword argument
np.int64(value=0) # E: Unexpected keyword argument
np.uint64(value=0) # E: Unexpected keyword argument
np.complex128(value=0.0j) # E: Unexpected keyword argument
np.str_(value='bob') # E: No overload variant
np.bytes_(value=b'test') # E: No overload variant
np.void(value=b'test') # E: No overload variant
np.bool_(value=True) # E: Unexpected keyword argument
np.datetime64(value="2019") # E: No overload variant
np.timedelta64(value=0) # E: Unexpected keyword argument
np.bytes_(b"hello", encoding='utf-8') # E: No overload variant
np.str_("hello", encoding='utf-8') # E: No overload variant
f8.item(1) # E: incompatible type
f8.item((0, 1)) # E: incompatible type
f8.squeeze(axis=1) # E: incompatible type
f8.squeeze(axis=(0, 1)) # E: incompatible type
f8.transpose(1) # E: incompatible type
def func(a: np.float32) -> None: ...
func(f2) # E: incompatible type
func(f8) # E: incompatible type
round(c8) # E: No overload variant
c8.__getnewargs__() # E: Invalid self argument
f2.__getnewargs__() # E: Invalid self argument
f2.hex() # E: Invalid self argument
np.float16.fromhex("0x0.0p+0") # E: Invalid self argument
f2.__trunc__() # E: Invalid self argument
f2.__getformat__("float") # E: Invalid self argument
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