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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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