Does PySide6 require numpy?

j77h · wrote on 13 Feb 2024, 03:28

And is it normal for simply "import PySide6" to import numpy?

I checked all the imports (with python -v) for a little app I'm making, and was surprised to see that the great bulk of the output was about numpy.

Then I ran the following simple script:

import sys

def print_sys_modules():
	print('\nsys.modules :')
	for m in sys.modules :
		print(f'  {m!r}')
	print('\n')

print_sys_modules()
import PySide6
print_sys_modules()

The output was:

# ### BEFORE IMPORTING PySide6 ###

sys.modules :
  'sys'
  'builtins'
  '_frozen_importlib'
  '_imp'
  '_thread'
  '_warnings'
  '_weakref'
  '_io'
  'marshal'
  'posix'
  '_frozen_importlib_external'
  'time'
  'zipimport'
  '_codecs'
  'codecs'
  'encodings.aliases'
  'encodings'
  'encodings.utf_8'
  '_signal'
  '_abc'
  'abc'
  'io'
  '__main__'
  '_stat'
  'stat'
  '_collections_abc'
  'genericpath'
  'posixpath'
  'os.path'
  'os'
  '_sitebuiltins'
  '_distutils_hack'
  'site'

# ### AFTER IMPORTING PySide6 ###

sys.modules :
  'sys'
  'builtins'
  '_frozen_importlib'
  '_imp'
  '_thread'
  '_warnings'
  '_weakref'
  '_io'
  'marshal'
  'posix'
  '_frozen_importlib_external'
  'time'
  'zipimport'
  '_codecs'
  'codecs'
  'encodings.aliases'
  'encodings'
  'encodings.utf_8'
  '_signal'
  '_abc'
  'abc'
  'io'
  '__main__'
  '_stat'
  'stat'
  '_collections_abc'
  'genericpath'
  'posixpath'
  'os.path'
  'os'
  '_sitebuiltins'
  '_distutils_hack'
  'site'
  'types'
  '_operator'
  'operator'
  'itertools'
  'keyword'
  'reprlib'
  '_collections'
  'collections'
  '_functools'
  'functools'
  'enum'
  '_sre'
  're._constants'
  're._parser'
  're._casefix'
  're._compiler'
  'copyreg'
  're'
  'fnmatch'
  'ntpath'
  'warnings'
  'errno'
  'urllib'
  'ipaddress'
  'urllib.parse'
  'pathlib'
  'textwrap'
  'binascii'
  'importlib._bootstrap'
  'importlib._bootstrap_external'
  'importlib'
  'importlib._abc'
  'contextlib'
  'importlib.util'
  'zlib'
  '_compression'
  '_bz2'
  'bz2'
  '_lzma'
  'lzma'
  'shutil'
  '_struct'
  'struct'
  '_weakrefset'
  'threading'
  'zipfile'
  'base64'
  'collections.abc'
  'token'
  'tokenize'
  'linecache'
  'traceback'
  'math'
  '_bisect'
  'bisect'
  '_random'
  '_sha512'
  'random'
  'weakref'
  'tempfile'
  '_typing'
  'typing.io'
  'typing.re'
  'typing'
  'numpy._utils._convertions'
  'numpy._utils'
  'numpy._globals'
  'numpy.exceptions'
  'numpy.version'
  'numpy._distributor_init'
  'numpy._utils._inspect'
  '_datetime'
  'datetime'
  'numpy.core._exceptions'
  'numpy.dtypes'
  'numpy.core._multiarray_umath'
  'numpy.core.overrides'
  'numpy.core.multiarray'
  'numpy.core.umath'
  'numbers'
  'numpy.core._string_helpers'
  '_compat_pickle'
  '_pickle'
  'pickle'
  'numpy.compat.py3k'
  'numpy.compat'
  'numpy.core._dtype'
  'numpy.core._type_aliases'
  'numpy.core.numerictypes'
  '_contextvars'
  'contextvars'
  'numpy.core._ufunc_config'
  'numpy.core._methods'
  'numpy.core.fromnumeric'
  'numpy.core.shape_base'
  'numpy.core.arrayprint'
  'numpy.core._asarray'
  'numpy.core.numeric'
  'numpy.core.defchararray'
  'numpy.core.records'
  'numpy.core.memmap'
  'numpy.core.function_base'
  'numpy.core._machar'
  'numpy.core.getlimits'
  'numpy.core.einsumfunc'
  'numpy.core._multiarray_tests'
  'numpy.core._add_newdocs'
  'numpy.core._add_newdocs_scalars'
  'numpy.core._dtype_ctypes'
  '_ast'
  'ast'
  '_ctypes'
  'ctypes._endian'
  'ctypes'
  'numpy.core._internal'
  'numpy._pytesttester'
  'numpy.core'
  'numpy.__config__'
  'numpy.lib.mixins'
  'numpy.lib.ufunclike'
  'numpy.lib.type_check'
  'numpy.lib.scimath'
  'numpy.lib.stride_tricks'
  'numpy.lib.twodim_base'
  'numpy.linalg._umath_linalg'
  '__future__'
  'numpy._typing._nested_sequence'
  'numpy._typing._nbit'
  'numpy._typing._char_codes'
  'numpy._typing._scalars'
  'numpy._typing._shape'
  'numpy._typing._dtype_like'
  'numpy._typing._array_like'
  'numpy._typing'
  'numpy.linalg.linalg'
  'numpy.linalg'
  'numpy.matrixlib.defmatrix'
  'numpy.matrixlib'
  'numpy.lib.histograms'
  'numpy.lib.function_base'
  'numpy.lib.index_tricks'
  'numpy.lib.nanfunctions'
  'numpy.lib.shape_base'
  'numpy.lib.polynomial'
  'platform'
  'numpy.lib.utils'
  'numpy.lib.arraysetops'
  'numpy.lib.format'
  'numpy.lib._datasource'
  'numpy.lib._iotools'
  'numpy.lib.npyio'
  'numpy.lib.arrayterator'
  'numpy.lib.arraypad'
  'numpy.lib._version'
  'numpy.lib'
  'numpy.fft._pocketfft_internal'
  'numpy.fft._pocketfft'
  'numpy.fft.helper'
  'numpy.fft'
  'numpy.polynomial.polyutils'
  'numpy.polynomial._polybase'
  'numpy.polynomial.polynomial'
  'numpy.polynomial.chebyshev'
  'numpy.polynomial.legendre'
  'numpy.polynomial.hermite'
  'numpy.polynomial.hermite_e'
  'numpy.polynomial.laguerre'
  'numpy.polynomial'
  'cython_runtime'
  '_cython_3_0_7'
  'numpy.random._common'
  '_hashlib'
  '_blake2'
  'hashlib'
  'hmac'
  'secrets'
  'numpy.random.bit_generator'
  'numpy.random._bounded_integers'
  'numpy.random._mt19937'
  'numpy.random.mtrand'
  'numpy.random._philox'
  'numpy.random._pcg64'
  'numpy.random._sfc64'
  'numpy.random._generator'
  'numpy.random._pickle'
  'numpy.random'
  'numpy.ctypeslib'
  '_opcode'
  'opcode'
  'dis'
  'importlib.machinery'
  'inspect'
  'numpy.ma.core'
  'numpy.ma.extras'
  'numpy.ma'
  'numpy'
  'xxsubtype'
  'signature_bootstrap'
  'encodings.cp437'
  'shibokensupport'
  'shibokensupport.signature'
  'shibokensupport.feature'
  'shibokensupport.signature.mapping'
  'shibokensupport.signature.errorhandler'
  'shibokensupport.signature.layout'
  'shibokensupport.signature.lib'
  'shibokensupport.signature.lib.tool'
  'shibokensupport.signature.parser'
  'PySide6.support'
  'PySide6.support.deprecated'
  'shibokensupport.signature.importhandler'
  'shibokensupport.signature.lib.enum_sig'
  'gettext'
  'argparse'
  '_string'
  'string'
  'atexit'
  'logging'
  'shibokensupport.signature.lib.pyi_generator'
  'PySide6.support.feature'
  'PySide6.support.signature'
  'PySide6.support.signature.mapping'
  'PySide6.support.signature.errorhandler'
  'PySide6.support.signature.layout'
  'PySide6.support.signature.lib'
  'PySide6.support.signature.parser'
  'PySide6.support.signature.importhandler'
  'PySide6.support.signature.lib.enum_sig'
  'PySide6.support.signature.lib.pyi_generator'
  'PySide6.support.signature.lib.tool'
  'shibokensupport.signature.loader'
  '__feature__'
  'shiboken6.Shiboken'
  'shiboken6'
  'PySide6'

friedemannkleint · wrote on 13 Feb 2024, 07:03

You can build it with or without; by default, it is used to for some APIs to get data quickly into plots, for example.