- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
通过“docker-compose build”构建docker镜像时出现以下错误。
ERROR: Couldn't connect to Docker daemon at http://127.0.0.1:2375 - is it running?
If it's at a non-standard location, specify the URL with the DOCKER_HOST environment variable.
即使我尝试使用“sudo”,我也得到了这个:
Building web
Step 1/8 : FROM python:3.8.3-alpine
---> 8ecf5a48c789
Step 2/8 : WORKDIR /usr/src/app
---> Using cache
---> 87bb0088a0ba
Step 3/8 : ENV PYTHONDONTWRITEBYTECODE 1
---> Using cache
---> 4f1a6ddf9e1f
Step 4/8 : ENV PYTHONUNBUFFERED 1
---> Using cache
---> 5d22b6b7a0f5
Step 5/8 : RUN pip install --upgrade pip
---> Using cache
---> 169ee831f728
Step 6/8 : COPY ./requirements.txt .
---> Using cache
---> 4b4351e31632
Step 7/8 : RUN pip install -r requirements.txt
---> Running in a4dae2fe3761
Collecting asgiref==3.2.10
Downloading asgiref-3.2.10-py3-none-any.whl (19 kB)
Collecting cffi==1.14.3
Downloading cffi-1.14.3.tar.gz (470 kB)
Collecting cryptography==3.2.1
Downloading cryptography-3.2.1.tar.gz (540 kB)
Installing build dependencies: started
Installing build dependencies: finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python /usr/local/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-p3ocmpkd/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.6.0' wheel 'cffi>=1.8,!=1.11.3; platform_python_implementation != '"'"'PyPy'"'"''
cwd: None
Complete output (128 lines):
Collecting setuptools>=40.6.0
Downloading setuptools-50.3.2-py3-none-any.whl (785 kB)
Collecting wheel
Downloading wheel-0.35.1-py2.py3-none-any.whl (33 kB)
Collecting cffi!=1.11.3,>=1.8
Using cached cffi-1.14.3.tar.gz (470 kB)
Collecting pycparser
Downloading pycparser-2.20-py2.py3-none-any.whl (112 kB)
Building wheels for collected packages: cffi
Building wheel for cffi (setup.py): started
Building wheel for cffi (setup.py): finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-_eoslhz1/cffi/setup.py'"'"'; __file__='"'"'/tmp/pip-install-_eoslhz1/cffi/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-99ngzpxw
cwd: /tmp/pip-install-_eoslhz1/cffi/
Complete output (50 lines):
unable to execute 'gcc': No such file or directory
unable to execute 'gcc': No such file or directory
No working compiler found, or bogus compiler options passed to
the compiler from Python's standard "distutils" module. See
the error messages above. Likely, the problem is not related
to CFFI but generic to the setup.py of any Python package that
tries to compile C code. (Hints: on OS/X 10.8, for errors about
-mno-fused-madd see http://stackoverflow.com/questions/22313407/
Otherwise, see https://wiki.python.org/moin/CompLangPython or
the IRC channel #python on irc.freenode.net.)
Trying to continue anyway. If you are trying to install CFFI from
a build done in a different context, you can ignore this warning.
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.8
creating build/lib.linux-x86_64-3.8/cffi
copying cffi/api.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/verifier.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/recompiler.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/vengine_gen.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/model.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/__init__.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/error.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/ffiplatform.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/cparser.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/backend_ctypes.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/cffi_opcode.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/commontypes.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/pkgconfig.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/setuptools_ext.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/lock.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/vengine_cpy.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_cffi_include.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/parse_c_type.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_embedding.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_cffi_errors.h -> build/lib.linux-x86_64-3.8/cffi
warning: build_py: byte-compiling is disabled, skipping.
running build_ext
building '_cffi_backend' extension
creating build/temp.linux-x86_64-3.8
creating build/temp.linux-x86_64-3.8/c
gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -DTHREAD_STACK_SIZE=0x100000 -fPIC -I/usr/include/ffi -I/usr/include/libffi -I/usr/local/include/python3.8 -c c/_cffi_backend.c -o build/temp.linux-x86_64-3.8/c/_cffi_backend.o
unable to execute 'gcc': No such file or directory
error: command 'gcc' failed with exit status 1
----------------------------------------
ERROR: Failed building wheel for cffi
Running setup.py clean for cffi
Failed to build cffi
Installing collected packages: setuptools, wheel, pycparser, cffi
Running setup.py install for cffi: started
Running setup.py install for cffi: finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-_eoslhz1/cffi/setup.py'"'"'; __file__='"'"'/tmp/pip-install-_eoslhz1/cffi/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-pah2aui6/install-record.txt --single-version-externally-managed --prefix /tmp/pip-build-env-p3ocmpkd/overlay --compile --install-headers /tmp/pip-build-env-p3ocmpkd/overlay/include/python3.8/cffi
cwd: /tmp/pip-install-_eoslhz1/cffi/
Complete output (50 lines):
unable to execute 'gcc': No such file or directory
unable to execute 'gcc': No such file or directory
No working compiler found, or bogus compiler options passed to
the compiler from Python's standard "distutils" module. See
the error messages above. Likely, the problem is not related
to CFFI but generic to the setup.py of any Python package that
tries to compile C code. (Hints: on OS/X 10.8, for errors about
-mno-fused-madd see http://stackoverflow.com/questions/22313407/
Otherwise, see https://wiki.python.org/moin/CompLangPython or
the IRC channel #python on irc.freenode.net.)
Trying to continue anyway. If you are trying to install CFFI from
a build done in a different context, you can ignore this warning.
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.8
creating build/lib.linux-x86_64-3.8/cffi
copying cffi/api.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/verifier.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/recompiler.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/vengine_gen.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/model.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/__init__.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/error.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/ffiplatform.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/cparser.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/backend_ctypes.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/cffi_opcode.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/commontypes.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/pkgconfig.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/setuptools_ext.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/lock.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/vengine_cpy.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_cffi_include.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/parse_c_type.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_embedding.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_cffi_errors.h -> build/lib.linux-x86_64-3.8/cffi
warning: build_py: byte-compiling is disabled, skipping.
running build_ext
building '_cffi_backend' extension
creating build/temp.linux-x86_64-3.8
creating build/temp.linux-x86_64-3.8/c
gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -DTHREAD_STACK_SIZE=0x100000 -fPIC -I/usr/include/ffi -I/usr/include/libffi -I/usr/local/include/python3.8 -c c/_cffi_backend.c -o build/temp.linux-x86_64-3.8/c/_cffi_backend.o
unable to execute 'gcc': No such file or directory
error: command 'gcc' failed with exit status 1
----------------------------------------
ERROR: Command errored out with exit status 1: /usr/local/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-_eoslhz1/cffi/setup.py'"'"'; __file__='"'"'/tmp/pip-install-_eoslhz1/cffi/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-pah2aui6/install-record.txt --single-version-externally-managed --prefix /tmp/pip-build-env-p3ocmpkd/overlay --compile --install-headers /tmp/pip-build-env-p3ocmpkd/overlay/include/python3.8/cffi Check the logs for full command output.
----------------------------------------
ERROR: Command errored out with exit status 1: /usr/local/bin/python /usr/local/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-p3ocmpkd/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.6.0' wheel 'cffi>=1.8,!=1.11.3; platform_python_implementation != '"'"'PyPy'"'"'' Check the logs for full command output.
ERROR: Service 'web' failed to build: The command '/bin/sh -c pip install -r requirements.txt' returned a non-zero code: 1
那是我的 Dockerfile:
# pull official base image
FROM python:3.8.3-alpine
# set work directory
WORKDIR /usr/src/app
# set environment variables
ENV PYTHONDONTWRITEBYTECODE 1
ENV PYTHONUNBUFFERED 1
# install dependencies
RUN pip install --upgrade pip
COPY ./requirements.txt .
RUN pip install -r requirements.txt
# copy project
COPY . .
和 docker-compose.yml:
version: '3.7'
services:
web:
build: .
command: python manage.py runserver 0.0.0.0:8000
volumes:
- ./:/usr/src/app/
ports:
- 8000:8000
env_file:
- ./.env.dev
我要补充一点,我几个月前买了我的笔记本电脑,并且在我以前的系统上使用该设备时 Docker 已经出现问题(这是我更改系统的原因之一)。我从 Fedora 切换到 Ubuntu。
Step 8/9 : RUN pip install -r requirements.txt
---> Running in cd9c74fbd831
Collecting asgiref==3.2.10
Downloading asgiref-3.2.10-py3-none-any.whl (19 kB)
Collecting cffi==1.14.3
Downloading cffi-1.14.3.tar.gz (470 kB)
Collecting cryptography==3.2.1
Downloading cryptography-3.2.1.tar.gz (540 kB)
Installing build dependencies: started
Installing build dependencies: finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python /usr/local/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-gbfaltlj/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.6.0' wheel 'cffi>=1.8,!=1.11.3; platform_python_implementation != '"'"'PyPy'"'"''
cwd: None
Complete output (104 lines):
Collecting setuptools>=40.6.0
Downloading setuptools-50.3.2-py3-none-any.whl (785 kB)
Collecting wheel
Downloading wheel-0.35.1-py2.py3-none-any.whl (33 kB)
Collecting cffi!=1.11.3,>=1.8
Using cached cffi-1.14.3.tar.gz (470 kB)
Collecting pycparser
Downloading pycparser-2.20-py2.py3-none-any.whl (112 kB)
Building wheels for collected packages: cffi
Building wheel for cffi (setup.py): started
Building wheel for cffi (setup.py): finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-myhajkmm/cffi/setup.py'"'"'; __file__='"'"'/tmp/pip-install-myhajkmm/cffi/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /tmp/pip-wheel-9jsg5veu
cwd: /tmp/pip-install-myhajkmm/cffi/
Complete output (38 lines):
running bdist_wheel
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.8
creating build/lib.linux-x86_64-3.8/cffi
copying cffi/api.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/verifier.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/recompiler.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/vengine_gen.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/model.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/__init__.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/error.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/ffiplatform.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/cparser.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/backend_ctypes.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/cffi_opcode.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/commontypes.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/pkgconfig.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/setuptools_ext.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/lock.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/vengine_cpy.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_cffi_include.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/parse_c_type.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_embedding.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_cffi_errors.h -> build/lib.linux-x86_64-3.8/cffi
warning: build_py: byte-compiling is disabled, skipping.
running build_ext
building '_cffi_backend' extension
creating build/temp.linux-x86_64-3.8
creating build/temp.linux-x86_64-3.8/c
gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -DTHREAD_STACK_SIZE=0x100000 -fPIC -DUSE__THREAD -DHAVE_SYNC_SYNCHRONIZE -I/usr/include/ffi -I/usr/include/libffi -I/usr/local/include/python3.8 -c c/_cffi_backend.c -o build/temp.linux-x86_64-3.8/c/_cffi_backend.o
c/_cffi_backend.c:15:10: fatal error: ffi.h: No such file or directory
15 | #include <ffi.h>
| ^~~~~~~
compilation terminated.
error: command 'gcc' failed with exit status 1
----------------------------------------
ERROR: Failed building wheel for cffi
Running setup.py clean for cffi
Failed to build cffi
Installing collected packages: setuptools, wheel, pycparser, cffi
Running setup.py install for cffi: started
Running setup.py install for cffi: finished with status 'error'
ERROR: Command errored out with exit status 1:
command: /usr/local/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-myhajkmm/cffi/setup.py'"'"'; __file__='"'"'/tmp/pip-install-myhajkmm/cffi/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-s86a1yn7/install-record.txt --single-version-externally-managed --prefix /tmp/pip-build-env-gbfaltlj/overlay --compile --install-headers /tmp/pip-build-env-gbfaltlj/overlay/include/python3.8/cffi
cwd: /tmp/pip-install-myhajkmm/cffi/
Complete output (38 lines):
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.8
creating build/lib.linux-x86_64-3.8/cffi
copying cffi/api.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/verifier.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/recompiler.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/vengine_gen.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/model.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/__init__.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/error.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/ffiplatform.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/cparser.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/backend_ctypes.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/cffi_opcode.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/commontypes.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/pkgconfig.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/setuptools_ext.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/lock.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/vengine_cpy.py -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_cffi_include.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/parse_c_type.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_embedding.h -> build/lib.linux-x86_64-3.8/cffi
copying cffi/_cffi_errors.h -> build/lib.linux-x86_64-3.8/cffi
warning: build_py: byte-compiling is disabled, skipping.
running build_ext
building '_cffi_backend' extension
creating build/temp.linux-x86_64-3.8
creating build/temp.linux-x86_64-3.8/c
gcc -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O3 -Wall -DTHREAD_STACK_SIZE=0x100000 -fPIC -DUSE__THREAD -DHAVE_SYNC_SYNCHRONIZE -I/usr/include/ffi -I/usr/include/libffi -I/usr/local/include/python3.8 -c c/_cffi_backend.c -o build/temp.linux-x86_64-3.8/c/_cffi_backend.o
c/_cffi_backend.c:15:10: fatal error: ffi.h: No such file or directory
15 | #include <ffi.h>
| ^~~~~~~
compilation terminated.
error: command 'gcc' failed with exit status 1
----------------------------------------
ERROR: Command errored out with exit status 1: /usr/local/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-myhajkmm/cffi/setup.py'"'"'; __file__='"'"'/tmp/pip-install-myhajkmm/cffi/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record /tmp/pip-record-s86a1yn7/install-record.txt --single-version-externally-managed --prefix /tmp/pip-build-env-gbfaltlj/overlay --compile --install-headers /tmp/pip-build-env-gbfaltlj/overlay/include/python3.8/cffi Check the logs for full command output.
----------------------------------------
ERROR: Command errored out with exit status 1: /usr/local/bin/python /usr/local/lib/python3.8/site-packages/pip install --ignore-installed --no-user --prefix /tmp/pip-build-env-gbfaltlj/overlay --no-warn-script-location --no-binary :none: --only-binary :none: -i https://pypi.org/simple -- 'setuptools>=40.6.0' wheel 'cffi>=1.8,!=1.11.3; platform_python_implementation != '"'"'PyPy'"'"'' Check the logs for full command output.
ERROR: Service 'web' failed to build: The command '/bin/sh -c pip install -r requirements.txt' returned a non-zero code: 1
最佳答案
Alpine Linux 不支持在 manylinux
下提供的二进制轮 Python 包标签,所以你必须编译 cffi
之类的东西和 cryptography
你自己。为此,您需要一个编译器和一组正确的头文件。这记录在 cryptography
中installation documentation for Alpine .
2021 年 9 月更新:现在有一个 musllinux
允许与 Alpine 一起使用的二进制轮的标准。要使用它们,您必须拥有 pip
21.2.4 或更高版本 .
关于python - 为什么我在构建 docker 镜像时遇到这个错误?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/64635913/
我正在处理一组标记为 160 个组的 173k 点。我想通过合并最接近的(到 9 或 10 个组)来减少组/集群的数量。我搜索过 sklearn 或类似的库,但没有成功。 我猜它只是通过 knn 聚类
我有一个扁平数字列表,这些数字逻辑上以 3 为一组,其中每个三元组是 (number, __ignored, flag[0 or 1]),例如: [7,56,1, 8,0,0, 2,0,0, 6,1,
我正在使用 pipenv 来管理我的包。我想编写一个 python 脚本来调用另一个使用不同虚拟环境(VE)的 python 脚本。 如何运行使用 VE1 的 python 脚本 1 并调用另一个 p
假设我有一个文件 script.py 位于 path = "foo/bar/script.py"。我正在寻找一种在 Python 中通过函数 execute_script() 从我的主要 Python
这听起来像是谜语或笑话,但实际上我还没有找到这个问题的答案。 问题到底是什么? 我想运行 2 个脚本。在第一个脚本中,我调用另一个脚本,但我希望它们继续并行,而不是在两个单独的线程中。主要是我不希望第
我有一个带有 python 2.5.5 的软件。我想发送一个命令,该命令将在 python 2.7.5 中启动一个脚本,然后继续执行该脚本。 我试过用 #!python2.7.5 和http://re
我在 python 命令行(使用 python 2.7)中,并尝试运行 Python 脚本。我的操作系统是 Windows 7。我已将我的目录设置为包含我所有脚本的文件夹,使用: os.chdir("
剧透:部分解决(见最后)。 以下是使用 Python 嵌入的代码示例: #include int main(int argc, char** argv) { Py_SetPythonHome
假设我有以下列表,对应于及时的股票价格: prices = [1, 3, 7, 10, 9, 8, 5, 3, 6, 8, 12, 9, 6, 10, 13, 8, 4, 11] 我想确定以下总体上最
所以我试图在选择某个单选按钮时更改此框架的背景。 我的框架位于一个类中,并且单选按钮的功能位于该类之外。 (这样我就可以在所有其他框架上调用它们。) 问题是每当我选择单选按钮时都会出现以下错误: co
我正在尝试将字符串与 python 中的正则表达式进行比较,如下所示, #!/usr/bin/env python3 import re str1 = "Expecting property name
考虑以下原型(prototype) Boost.Python 模块,该模块从单独的 C++ 头文件中引入类“D”。 /* file: a/b.cpp */ BOOST_PYTHON_MODULE(c)
如何编写一个程序来“识别函数调用的行号?” python 检查模块提供了定位行号的选项,但是, def di(): return inspect.currentframe().f_back.f_l
我已经使用 macports 安装了 Python 2.7,并且由于我的 $PATH 变量,这就是我输入 $ python 时得到的变量。然而,virtualenv 默认使用 Python 2.6,除
我只想问如何加快 python 上的 re.search 速度。 我有一个很长的字符串行,长度为 176861(即带有一些符号的字母数字字符),我使用此函数测试了该行以进行研究: def getExe
list1= [u'%app%%General%%Council%', u'%people%', u'%people%%Regional%%Council%%Mandate%', u'%ppp%%Ge
这个问题在这里已经有了答案: Is it Pythonic to use list comprehensions for just side effects? (7 个答案) 关闭 4 个月前。 告
我想用 Python 将两个列表组合成一个列表,方法如下: a = [1,1,1,2,2,2,3,3,3,3] b= ["Sun", "is", "bright", "June","and" ,"Ju
我正在运行带有最新 Boost 发行版 (1.55.0) 的 Mac OS X 10.8.4 (Darwin 12.4.0)。我正在按照说明 here构建包含在我的发行版中的教程 Boost-Pyth
学习 Python,我正在尝试制作一个没有任何第 3 方库的网络抓取工具,这样过程对我来说并没有简化,而且我知道我在做什么。我浏览了一些在线资源,但所有这些都让我对某些事情感到困惑。 html 看起来
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