Installing pycurl on MacOS with Python 3.6+ and newer proved to be tricky, especially since a lot of the available resources seem to be outdated (1, 2, 3).
This gist was last updated at 2020-12-31.
- Remove previously installed Homebrew versions of
curl:
brew uninstall curl
brew uninstall openssl
brew uninstall curl-openssl- Install
openssland acurlversion that uses openssl rather than SecureTransport, which MacOScurluses by default. Note that Homebrew no longer allows options while installing, so it's not possible to dobrew install curl --with-openssl. This was replaced with a different brew formula,curl-openssl, and again replaced on2020-01-20with the current version of justcurl.:
brew install openssl
brew install curl # this is the latest version with openssl- Now we need to use the new curl when installing pycurl. We can also export the path to the new curl to make it used by default:
echo 'export PATH="/usr/local/opt/[email protected]/bin:$PATH"' >> ~/.zshrc # or ~/.bash_profile
echo 'export PATH="/usr/local/opt/curl/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc
source ~/.virtualenvs/foo_venv/bin/activate # or whichever venv you're using
export PYCURL_SSL_LIBRARY=openssl
export LDFLAGS="-L/usr/local/opt/curl/lib"
export CPPFLAGS="-I/usr/local/opt/curl/include"
pip install --no-cache-dir --compile --ignore-installed --install-option="--with-openssl" --install-option="--openssl-dir=/usr/local/opt/[email protected]" pycurl- Test with:
python
>>> import pycurl- The original OS X one in
/usr/bin/curl:
$ /usr/bin/curl --version
curl 7.64.1 (x86_64-apple-darwin20.0) libcurl/7.64.1 (SecureTransport) LibreSSL/2.8.3 zlib/1.2.11 nghttp2/1.41.0
Release-Date: 2019-03-27
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps pop3 pop3s rtsp smb smbs smtp smtps telnet tftp
Features: AsynchDNS GSS-API HTTP2 HTTPS-proxy IPv6 Kerberos Largefile libz MultiSSL NTLM NTLM_WB SPNEGO SSL UnixSockets- The Homebrew one in
/usr/local/opt/curl/bin/curl:
$ /usr/local/opt/curl/bin/curl --version
curl 7.74.0 (x86_64-apple-darwin20.2.0) libcurl/7.74.0 (SecureTransport) OpenSSL/1.1.1i zlib/1.2.11 brotli/1.0.9 zstd/1.4.8 libidn2/2.3.0 libssh2/1.9.0 nghttp2/1.42.0 librtmp/2.3
Release-Date: 2020-12-09
Protocols: dict file ftp ftps gopher http https imap imaps ldap ldaps mqtt pop3 pop3s rtmp rtsp scp sftp smb smbs smtp smtps telnet tftp
Features: alt-svc AsynchDNS brotli GSS-API HTTP2 HTTPS-proxy IDN IPv6 Kerberos Largefile libz Metalink MultiSSL NTLM NTLM_WB SPNEGO SSL TLS-SRP UnixSockets zstdAnd our pycurl should use the second one, both at linker level and at compile level.
I have recently upgrade my MacOS High serria to Catalina 10.15.7 and start facing this problem for virtual environment for pycurl. I did all your steps as it is to resolve my pycurl problem but am receving this error while executing this command
pip install --no-cache-dir --compile --ignore-installed --install-option="--with-openssl" --install-option="--openssl-dir=/usr/local/opt/[email protected]" pycurl
Error:
WARNING: Discarding https://files.pythonhosted.org/packages/fe/8f/711d436c76938093dd10dae465ccee316c6241cfdada06c5cc3b5c1f74b8/pycurl-7.18.2.tar.gz#sha256=cda1085b7911ca802746d816f37d541165ad1e20c241d22e4c304ddb2bc81ffe (from https://pypi.org/simple/pycurl/). Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.
ERROR: Could not find a version that satisfies the requirement pycurl (from versions: 7.18.2, 7.19.0, 7.19.0.1, 7.19.0.2, 7.19.0.3, 7.19.3, 7.19.3.1, 7.19.5, 7.19.5.1, 7.19.5.2, 7.19.5.3, 7.21.5, 7.43.0, 7.43.0.1, 7.43.0.2, 7.43.0.3, 7.43.0.4, 7.43.0.5, 7.43.0.6, 7.44.0, 7.44.1)
ERROR: No matching distribution found for pycurl