Why typing.py differs in python3.7 between docker image and cpython source?
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I found strange behaviour between two python-3.7.2 versions. The first one I've compiled from source on my host machine (Ubuntu 17.10) the other one is python docker image docker pull python:3.7
import abc
import typing
class Meta(metaclass=abc.ABCMeta):
pass
class Base(Meta):
pass
class Type(Base):
pass
T = typing.TypeVar('T', bound=Type)
class Variable(typing.Generic[T], Base):
"""
Variable docstring...
"""
class Member(Variable[T]):
__doc__ = Variable[T].__doc__
m = Member()
assert 'Variable docstring' in m.__class__.__doc__
This assertion differs between my host and docker machines. On docker docstring is inherited from _GenericAlias from typing.py.
In fact on my host machine where python was installed from sources typing.py does not contain class _GenericAlias but python from docker image it is under /usr/local/lib/python3.7/typing.py:591:class _GenericAlias(_Final, _root=True)
Why such behaviour exists? And how to prevent them in the future?
python docker
asked Jan 4 at 14:39
heniekheniek
9510
add a comment |
I found strange behaviour between two python-3.7.2 versions. The first one I've compiled from source on my host machine (Ubuntu 17.10) the other one is python docker image docker pull python:3.7
import abc
import typing
class Meta(metaclass=abc.ABCMeta):
pass
class Base(Meta):
pass
class Type(Base):
pass
T = typing.TypeVar('T', bound=Type)
class Variable(typing.Generic[T], Base):
"""
Variable docstring...
"""
class Member(Variable[T]):
__doc__ = Variable[T].__doc__
m = Member()
assert 'Variable docstring' in m.__class__.__doc__
This assertion differs between my host and docker machines. On docker docstring is inherited from _GenericAlias from typing.py.
In fact on my host machine where python was installed from sources typing.py does not contain class _GenericAlias but python from docker image it is under /usr/local/lib/python3.7/typing.py:591:class _GenericAlias(_Final, _root=True)
Why such behaviour exists? And how to prevent them in the future?
python docker
asked Jan 4 at 14:39
heniekheniek
9510
FWIW the assertion fails on my machine as well ("normal" installation of Python 3.7), and I do havetyping._GenericAlias(Python 3.7.0 on Win 10)
– DeepSpace
Jan 4 at 15:02
add a comment |
I found strange behaviour between two python-3.7.2 versions. The first one I've compiled from source on my host machine (Ubuntu 17.10) the other one is python docker image docker pull python:3.7
import abc
import typing
class Meta(metaclass=abc.ABCMeta):
pass
class Base(Meta):
pass
class Type(Base):
pass
T = typing.TypeVar('T', bound=Type)
class Variable(typing.Generic[T], Base):
"""
Variable docstring...
"""
class Member(Variable[T]):
__doc__ = Variable[T].__doc__
m = Member()
assert 'Variable docstring' in m.__class__.__doc__
This assertion differs between my host and docker machines. On docker docstring is inherited from _GenericAlias from typing.py.
In fact on my host machine where python was installed from sources typing.py does not contain class _GenericAlias but python from docker image it is under /usr/local/lib/python3.7/typing.py:591:class _GenericAlias(_Final, _root=True)
Why such behaviour exists? And how to prevent them in the future?
python docker
asked Jan 4 at 14:39
heniekheniek
9510
I found strange behaviour between two python-3.7.2 versions. The first one I've compiled from source on my host machine (Ubuntu 17.10) the other one is python docker image docker pull python:3.7
import abc
import typing
class Meta(metaclass=abc.ABCMeta):
pass
class Base(Meta):
pass
class Type(Base):
pass
T = typing.TypeVar('T', bound=Type)
class Variable(typing.Generic[T], Base):
"""
Variable docstring...
"""
class Member(Variable[T]):
__doc__ = Variable[T].__doc__
m = Member()
assert 'Variable docstring' in m.__class__.__doc__
This assertion differs between my host and docker machines. On docker docstring is inherited from _GenericAlias from typing.py.
In fact on my host machine where python was installed from sources typing.py does not contain class _GenericAlias but python from docker image it is under /usr/local/lib/python3.7/typing.py:591:class _GenericAlias(_Final, _root=True)
Why such behaviour exists? And how to prevent them in the future?
python docker
python docker
asked Jan 4 at 14:39
heniekheniek
9510
asked Jan 4 at 14:39
heniekheniek
9510
asked Jan 4 at 14:39
heniekheniek
9510
asked Jan 4 at 14:39
heniekheniek
9510
asked Jan 4 at 14:39
heniekheniek
9510
9510
FWIW the assertion fails on my machine as well ("normal" installation of Python 3.7), and I do havetyping._GenericAlias(Python 3.7.0 on Win 10)
– DeepSpace
Jan 4 at 15:02
add a comment |
FWIW the assertion fails on my machine as well ("normal" installation of Python 3.7), and I do havetyping._GenericAlias(Python 3.7.0 on Win 10)
– DeepSpace
Jan 4 at 15:02
FWIW the assertion fails on my machine as well ("normal" installation of Python 3.7), and I do have
typing._GenericAlias (Python 3.7.0 on Win 10)– DeepSpace
Jan 4 at 15:02
FWIW the assertion fails on my machine as well ("normal" installation of Python 3.7), and I do have
typing._GenericAlias (Python 3.7.0 on Win 10)– DeepSpace
Jan 4 at 15:02
add a comment |
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FWIW the assertion fails on my machine as well ("normal" installation of Python 3.7), and I do have
typing._GenericAlias(Python 3.7.0 on Win 10)– DeepSpace
Jan 4 at 15:02