Fails to install from pypi

[Xevib]

Description

When insalling semaphore from pip I get the following error:

Building wheels for collected packages: symbolic, semaphore
  Building wheel for symbolic (setup.py) ... error
  ERROR: Complete output from command /www/sentry/bin/python2 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-install-UHxQ89/symbolic/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-ooHfBf --python-tag cp27:
  ERROR: running `cargo build --release` (release target)
  running bdist_wheel
  running build
  running build_py
  creating build/lib.linux-armv7l-2.7
  creating build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/debuginfo.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/exceptions.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/symcache.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/sourcemap.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/minidump.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/demangle.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/unreal.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/__init__.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/proguard.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/common.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/_compat.py -> build/lib.linux-armv7l-2.7/symbolic
  copying symbolic/utils.py -> build/lib.linux-armv7l-2.7/symbolic
  error: [Errno 2] No such file or directory
  ----------------------------------------
  ERROR: Failed building wheel for symbolic
  Running setup.py clean for symbolic
  Building wheel for semaphore (setup.py) ... error
  ERROR: Complete output from command /www/sentry/bin/python2 -u -c 'import setuptools, tokenize;__file__='"'"'/tmp/pip-install-UHxQ89/semaphore/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-d9JJB1 --python-tag cp27:
  ERROR: running bdist_wheel
  running build
  running build_py
  creating build/lib.linux-armv7l-2.7
  creating build/lib.linux-armv7l-2.7/semaphore
  copying semaphore/exceptions.py -> build/lib.linux-armv7l-2.7/semaphore
  copying semaphore/processing.py -> build/lib.linux-armv7l-2.7/semaphore
  copying semaphore/__init__.py -> build/lib.linux-armv7l-2.7/semaphore
  copying semaphore/_compat.py -> build/lib.linux-armv7l-2.7/semaphore
  copying semaphore/utils.py -> build/lib.linux-armv7l-2.7/semaphore
  copying semaphore/auth.py -> build/lib.linux-armv7l-2.7/semaphore
  error: [Errno 2] No such file or directory
  ----------------------------------------
  ERROR: Failed building wheel for semaphore
  Running setup.py clean for semaphore
Failed to build symbolic semaphore

This happens on a "Linux 4.9.93-mainline-rev1 #1 SMP Tue Apr 10 09:42:40 UTC 2018 armv7l armv7l armv7l GNU/Linux"

[untitaker]

We don't provide wheels for armv7, so you will have to install Rust to be able to build and install semaphore.

[vokimon]

Just in case somebody else fall into this error. The missing file is cargo the rust package installer.

[vincent-heatseekr]

You're a hero. This sudo apt-get install -y cargo solved the problem for me.