Cannot update OpenSSL for Python3

[Cecil Westerhof]

Op Monday 4 May 2015 16:18 CEST schreef Chris Angelico:

> On Mon, May 4, 2015 at 11:13 PM, Cecil Westerhof <Cecil at decebal.nl> wrote:
>> That gets installed. And then I get:
>> ImportError: No module named 'cryptography'
>>
>> So I try to install that. This gives: Command /usr/bin/python3 -c
>> "import setuptools,
>> tokenize;__file__='/tmp/pip_build_root/cryptography/setup.py';exec(compile(getattr(tokenize,
>> 'open', open)(__file__).read().replace('\r\n', '\n'), __file__,
>> 'exec'))" install --record
>> /tmp/pip-_7jexj87-record/install-record.txt
>> --single-version-externally-managed --compile failed with error
>> code 1 in /tmp/pip_build_root/cryptography Storing debug log for
>> failure in /root/.pip/pip.log
>>
>> In the log I see: c/_cffi_backend.c:2:20: fatal error: Python.h: No
>> such file or directory #include <Python.h>
>
> Okay, that one's easy enough to deal with!
>
> You have something that needs to build a C extension. To do that,
> you need to have the Python headers installed. How did you install
> Python? On Debian/Ubuntu family Linuxes, that's probably "apt-get
> install python3" - so getting the headers would be "apt-get install
> python3-dev". Give that a try, and then retry the pip install.

I should have thought about that myself. :-(

Now I get:
    c/../_cffi1/ffi_obj.c:489:5: error: ISO C90 forbids mixed declarations and code [-Werror=declaration-after-statement]
         PyObject *u = PyUnicode_DecodeLatin1(PyBytes_AS_STRING(res),
         ^
    cc1: some warnings being treated as errors

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof