pycurl error on Mac OS 10.8

Question

I have installed pycurl using pip

oczml:~ acid$ sudo pip install pycurl
Password:
Downloading/unpacking pycurl
  Downloading pycurl-7.19.3.1.tar.gz (116kB): 116kB downloaded
  Running setup.py egg_info for package pycurl
    Using curl-config (libcurl 7.24.0)

Installing collected packages: pycurl
  Running setup.py install for pycurl
    Using curl-config (libcurl 7.24.0)
    building 'pycurl' extension
    clang -fno-strict-aliasing -fno-common -dynamic -g -Os -pipe -fno-common -fno-strict-aliasing -fwrapv -mno-fused-madd -DENABLE_DTRACE -DMACOSX -DNDEBUG -Wall -Wstrict-prototypes -Wshorten-64-to-32 -DNDEBUG -g -Os -Wall -Wstrict-prototypes -DENABLE_DTRACE -arch i386 -arch x86_64 -pipe -DPYCURL_VERSION="7.19.3.1" -DHAVE_CURL_SSL=1 -I/System/Library/Frameworks/Python.framework/Versions/2.7/include/python2.7 -c src/pycurl.c -o build/temp.macosx-10.8-intel-2.7/src/pycurl.o
    clang: warning: argument unused during compilation: '-mno-fused-madd'
    src/pycurl.c:123:4: warning: "libcurl was compiled with SSL support, but configure could not determine which "    "library was used; thus no SSL crypto locking callbacks will be set, which may "    "cause random crashes on SSL requests" [-W#warnings]
    #  warning \
       ^
    1 warning generated.
    src/pycurl.c:123:4: warning: "libcurl was compiled with SSL support, but configure could not determine which "    "library was used; thus no SSL crypto locking callbacks will be set, which may "    "cause random crashes on SSL requests" [-W#warnings]
    #  warning \
       ^
    src/pycurl.c:1555:26: warning: implicit conversion loses integer precision: 'long' to 'int' [-Wshorten-64-to-32]
                int sockfd = PyInt_AsLong(fileno_result);
                    ~~~~~~   ^~~~~~~~~~~~~~~~~~~~~~~~~~~
    src/pycurl.c:1630:24: warning: implicit conversion loses integer precision: 'long' to 'int' [-Wshorten-64-to-32]
            int ret_code = PyInt_AsLong(result);
                ~~~~~~~~   ^~~~~~~~~~~~~~~~~~~~
    src/pycurl.c:2447:31: warning: implicit conversion loses integer precision: 'long' to 'int' [-Wshorten-64-to-32]
                            val = PyLong_AsLong(PyTuple_GET_ITEM(t, j));
                                ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    src/pycurl.c:3610:22: warning: implicit conversion loses integer precision: 'long' to '__darwin_suseconds_t' (aka 'int') [-Wshorten-64-to-32]
            tv.tv_usec = (long)(timeout*1000000.0);
                       ~ ^~~~~~~~~~~~~~~~~~~~~~~~~
    src/pycurl.c:4513:27: warning: implicit conversion loses integer precision: 'unsigned long' to 'int' [-Wshorten-64-to-32]
        libcurl_version_len = strlen(libcurl_version);
                            ~ ^~~~~~~~~~~~~~~~~~~~~~~
    6 warnings generated.
    clang -bundle -undefined dynamic_lookup -Wl,-F. -arch i386 -arch x86_64 build/temp.macosx-10.8-intel-2.7/src/pycurl.o -lcurl -o build/lib.macosx-10.8-intel-2.7/pycurl.so

Successfully installed pycurl
Cleaning up...

But when I try to import pycurl, I get the following error:

ImportError: pycurl: libcurl link-time ssl backend (openssl) is different from compile-time ssl backend (none/other)

pip has a quirk. See: http://stackoverflow.com/questions/21487278/ssl-error-installing-pycurl-after-ssl-is-set — Andrei, Apr 03 '15 at 10:24

score 2 · Answer 1 · edited May 23 '17 at 12:22

2

Reposted from SSL backend error when using OpenSSL

After reading their INSTALLATION file, I was able to solve my problem by setting an environment variable and did a reinstall

remove existing pycurl installation

pip uninstall pycurl
export variable

export PYCURL_SSL_LIBRARY=openssl
install pycurl

pip install pycurl

There could be other solution out there but this works perfect for me on a virtualenv and pip installation

edited May 23 '17 at 12:22

Community

1
1

answered Mar 15 '14 at 12:43

mingaleg

2,017
16
28

no good... do I have to restart/logout after export or I can do 3 steps right from the same terminal session? – Pablo Mar 15 '14 at 12:48
You should export in the same terminal session. Maybe, just try `pip uninstall pycurl`, `export PYCURL_SSL_LIBRARY=openssl` and `easy_install pycurl` – mingaleg Mar 15 '14 at 12:51
And you can try `export PYCURL_SSL_LIBRARY=nss` – mingaleg Mar 15 '14 at 12:52
1

@Pablo I use `pip install pycurl --no-cache-dir` and it works. – Hunger Sep 29 '17 at 14:35

score 1 · Answer 2 · answered Dec 27 '17 at 08:37

I had the same problem and solved the problem this way. Firstly I'm using Python3 and using pip3, but the same should work for pip.

I realised that I didn't have SSL installed or setup, so I went here: https://www.openssl.org/source/ and installed the latest OpenSSL. You install it the old unix way, which is you download the gzip file.

tar -zxvf openssl-1.0.2n.tar.gz

(your file might be a different version) then run:

./Configure darwin64-x86_64-cc

(this is for 64-bit Mac architecture only. run ./configure normally) Then:

make
make test
sudo make install

(Used sudo because it may need to create folders). Now you have OpenSSL installed. You need to install PyCurl and tell it about your header files for OpenSSL. I did that this way:

pip3 install pycurl --global-option=build_ext --global-option="-L/{OpenSSL-install-directory}/lib" --global-option="-I/{OpenSSL-install-directory}/include"

replace {OpenSSL-install-directory} with your actual path. Mine was /usr/local/ssl:

pip3 install pycurl --global-option=build_ext --global-option="-L/usr/local/ssl/lib" --global-option="-I/usr/local/ssl/include"

Then it installed and worked.

Used the following resources in piecing this together:

pycurl error on Mac OS 10.8

2 Answers2