“Could not run curl-config: [Errno 2] No such file or directory” when installing pycurl on Alpine Linux

Question

I'm trying to install pycurl via:

sudo pip install pycurl

It downloaded fine, but when when it runs setup.py I get the following traceback:

Downloading/unpacking pycurl
  Running setup.py egg_info for package pycurl
    Traceback (most recent call last):
      File "<string>", line 16, in <module>
      File "/tmp/pip-build-root/pycurl/setup.py", line 563, in <module>
        ext = get_extension()
      File "/tmp/pip-build-root/pycurl/setup.py", line 368, in get_extension
        ext_config = ExtensionConfiguration()
      File "/tmp/pip-build-root/pycurl/setup.py", line 65, in __init__
        self.configure()
      File "/tmp/pip-build-root/pycurl/setup.py", line 100, in configure_unix
        raise ConfigurationError(msg)
    __main__.ConfigurationError: Could not run curl-config: [Errno 2] No such file or directory
    Complete output from command python setup.py egg_info:
    Traceback (most recent call last):

  File "<string>", line 16, in <module>
  File "/tmp/pip-build-root/pycurl/setup.py", line 563, in <module>
    ext = get_extension()
  File "/tmp/pip-build-root/pycurl/setup.py", line 368, in get_extension
    ext_config = ExtensionConfiguration()
  File "/tmp/pip-build-root/pycurl/setup.py", line 65, in __init__
    self.configure()
  File "/tmp/pip-build-root/pycurl/setup.py", line 100, in configure_unix
    raise ConfigurationError(msg)

__main__.ConfigurationError: Could not run curl-config: [Errno 2] No such file or directory

Any idea why this is happening and how to get around it using Alpine Linux?

Answer 1

Found it. I believe this works.

# Install packages
apk add --no-cache libcurl

# Needed for pycurl
ENV PYCURL_SSL_LIBRARY=openssl

# Install packages only needed for building, install and clean on a single layer
RUN apk add --no-cache --virtual .build-dependencies build-base curl-dev \
    && pip install pycurl \
    && apk del .build-dependencies