Python 2.7, PIP: "Failed building wheel for ..."

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First time using pip, trying to use the python-docs-samples tutorial library. When I run the "python -m pip install -r requirements.txt" command, a lot of scripts are pulled in, but then I get a series of "Failed building wheel" errors. One of these is shown in the attached code block (please pardon the hand-entered word-wrap linebreaks).

What is the problem? Anyone seen this before? I have not altered any parts of the library or the code that uses it, and I'm using Python 2.7.12 which is supposed to have good built-in support for PIP.

  Running setup.py bdist_wheel for PyYAML ... error
  Complete output from command C:\users\owner\python-docs-samples\env\Scripts\python.exe 
-u -c "import setuptools, tokenize;__file__='c:\\users\\owner\\appdata\\local\\temp\\
pip-build-86ysrg\\PyYAML\setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__)
.read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d c:\users\owner\appdata
\local\temp\tmpljy6z0pip-wheel- --python-tag cp27:
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build\lib.win32-2.7
  creating build\lib.win32-2.7\yaml
  copying lib\yaml\composer.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\constructor.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\cyaml.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\dumper.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\emitter.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\error.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\events.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\loader.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\nodes.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\parser.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\reader.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\representer.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\resolver.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\scanner.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\serializer.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\tokens.py -> build\lib.win32-2.7\yaml
  copying lib\yaml\__init__.py -> build\lib.win32-2.7\yaml
  running build_ext
  creating build\temp.win32-2.7
  creating build\temp.win32-2.7\Release
  checking if libyaml is compilable
  error: [Error 2] The system cannot find the file specified

  ----------------------------------------
  Failed building wheel for PyYAML
  Running setup.py clean for PyYAML

Install Common Dependencies

sudo apt-get install build-essential autoconf libtool pkg-config python-opengl python-pil python-pyrex python-pyside.qtopengl idle-python2.7 qt4-dev-tools qt4-designer libqtgui4 libqtcore4 libqt4-xml libqt4-test libqt4-script libqt4-network libqt4-dbus python-qt4 python-qt4-gl libgle3 python-dev

Installing Python Modules, pip is the preferred installer program. Starting with Python 2.7.9, it is included by default with the Python binary installers. a virtual environment is a semi-isolated  pip is the preferred installer program. Starting with Python 2.7.9, it is included by default with the Python binary installers. a virtual environment is a semi-isolated Python environment that allows packages to be installed for use by a particular application, rather than being installed system wide


The problem is Windows, where you'll run into dependency issues and build issues with C extensions if you don't have a compiler toolchain installed.

Manually installing the binary versions of some dependencies, such as PyYAML, is one solution (eg. with easy_install as suggested). For building binary wheels from source, you can also download the free Visual C++ Compiler for Python 2.7 here: https://www.microsoft.com/en-ca/download/details.aspx?id=44266

27.2. ensurepip — Bootstrapping the pip installer, New in version 2.7.9. The ensurepip package provides support for bootstrapping the pip installer into an existing Python installation or virtual environment. pip install numpy on python 2.7 attempts to install numpy 1.17, which dropped python 2.7 support. This is contrary to the functionality described in NEP 14, which states: pip install numpy on Python 2 will continue to give the last w


Like already mentioned above, the problem is Windows.

You can download compatible python packages from here:

Unofficial Windows Binaries for Python Extension Packages

then pip install the .whl file

pip install path_2_file\package.whl

pip · PyPI, pip is the package installer for Python. You can use pip to install packages from the Python Package Index and other indexes. Please take a look at our  I am using Windows 10. Currently, I have Python 2.7 installed. I would like to install Python 3.5 as well. However, if I have both 2.7 and 3.5 installed, when I run pip, how do I get the direct the


For me, this issue was resolved on Ubuntu 16 by upgrading pip:

pip install --upgrade pip

Python & pip Windows installation · BurntSushi/nfldb Wiki · GitHub, At the time of this writing, Python 2.7.8 is the latest. While either 32-bit (x86) or 64-​bit (x86-64) versions should work just fine, I tend to gravitate  Code of Conduct. Everyone interacting in the pip project’s codebases, issue trackers, chat rooms, and mailing lists is expected to follow the PyPA Code of Conduct.


Try this (not sure)

apt-get install -y pyyaml

I got an error 'Failed building wheel for subprocess32

apt-get install -y python-subprocess32

It worked for me!

Pip install - Python 2.7 - Windows 7, For New versions. Older versions of python may not have pip installed and get-​pip will throw errors. Please update your python (2.7.15 as of  pip works with CPython versions 2.7, 3.5, 3.6, 3.7, 3.8 and also PyPy. This means pip works on the latest patch version of each of these minor versions. Previous patch versions are supported on a best effort approach. pip works on Unix/Linux, macOS, and Windows.


Using pip to install Python 2 modules – DreamHost Knowledge Base, Normally, pip attempts to install in the server's default Python system a version of Python lower than 2.7.15 will fail on all DreamHost servers. Python 2.7.0. Note: A bugfix release, 2.7.16, is currently available.Its use is recommended. Python 2.7.0 was released on July 3rd, 2010. Python 2.7 is scheduled to be the last major version in the 2.x series before it moves into an extended maintenance period.


Installing Python 2 on Windows, Python 2.7.9 and later (on the python2 series), and Python 3.4 and later include pip by default. To see if pip is installed, open a command prompt and run. python-http-client 3.2.7 pip install python-http-client Copy PIP instructions. Latest version. Released: Apr 1, 2020 HTTP REST client, simplified for Python. Navigation.


How to Install Python PIP on Windows, Mac, and Linux, To install Python 2 and pip for Python 2, complete pip 9.0.1 from /usr/lib/​python2.7/dist-packages (python 2.7) pip is already installed if you're using Python 2 >=2.7.9 or Python 3 >=3.4 binaries downloaded from python.org, but you'll need to upgrade pip. On Windows upgrade can be done easily . Go to Python command line and run below Python command. python -m pip install -U pip. Installing with get-pip.py