I'm currently trying to install Brownie for Python on my Windows machine using pipx:

pipx install eth-brownie.

When I run this command, there is a "fatal error" message saying:

pip failed to build packages: bitarray cytoolz lru-dict

I also get a "possibly relevant" error message:

Microsoft Visual C 14.0 or greater is required. Get it with "Microsoft C Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/

I was wondering if anyone knew of a workaround to solve this that did not involve downloading MS Visual Studio. If not, its not a fatal blow to the project I'm working on, I would just like to save storage. Thanks.

CodePudding user response：

pip failed to build packages: bitarray cytoolz lru-dict

bitarray PyPI page regarding installation states

If you have a working C compiler, you can simply:

$ pip install bitarray

If you rather want to use precompiled binaries, you can:

• conda install bitarray (both the default Anaconda repository as well as conda-forge support bitarray)
• download Windows wheels from Chris Gohlke

So you might try installing using .whl file, if you are able to find suitable .whl for your system and architecture in linked site, however

cytoolz PyPI page regarding dependencies states

cytoolz supports Python 3.5 with a common codebase. It is developed in Cython, but requires no dependecies other than CPython and a C compiler. Like toolz, it is a light weight dependency.

So I suppose you would need working C compiler anyway.