Failed building wheel for cryptography #50

slideup-benni · 2016-09-10T22:14:11Z

Hello,

i'm getting an error when i try to install your pikaptcha:

(root@alphacentauri ~ # pip install git+https://github.com/sriyegna/pikaptcha
Collecting git+https://github.com/sriyegna/pikaptcha
  Cloning https://github.com/sriyegna/pikaptcha to /tmp/pip-FLdEe3-build
Collecting requests[security]==2.10.0 (from Pikaptcha===0.1)
  Downloading requests-2.10.0-py2.py3-none-any.whl (506kB)
    100% |████████████████████████████████| 512kB 2.4MB/s 
Requirement already satisfied (use --upgrade to upgrade): six==1.10.0 in /usr/lib/python2.7/dist-packages (from Pikaptcha===0.1)
Collecting selenium==2.53.6 (from Pikaptcha===0.1)
  Downloading selenium-2.53.6-py2.py3-none-any.whl (884kB)
    100% |████████████████████████████████| 890kB 1.4MB/s 
Collecting pyOpenSSL>=0.13; extra == "security" (from requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading pyOpenSSL-16.1.0-py2.py3-none-any.whl (43kB)
    100% |████████████████████████████████| 51kB 10.7MB/s 
Collecting ndg-httpsclient; extra == "security" (from requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading ndg_httpsclient-0.4.2.tar.gz
Collecting pyasn1; extra == "security" (from requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading pyasn1-0.1.9-py2.py3-none-any.whl
Collecting cryptography>=1.3.4 (from pyOpenSSL>=0.13; extra == "security"->requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading cryptography-1.5.tar.gz (400kB)
    100% |████████████████████████████████| 409kB 1.8MB/s 
Collecting idna>=2.0 (from cryptography>=1.3.4->pyOpenSSL>=0.13; extra == "security"->requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading idna-2.1-py2.py3-none-any.whl (54kB)
    100% |████████████████████████████████| 61kB 7.0MB/s 
Requirement already satisfied (use --upgrade to upgrade): setuptools>=11.3 in /usr/lib/python2.7/dist-packages (from cryptography>=1.3.4->pyOpenSSL>=0.13; extra == "security"->requests[security]==2.10.0->Pikaptcha===0.1)
Collecting enum34 (from cryptography>=1.3.4->pyOpenSSL>=0.13; extra == "security"->requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading enum34-1.1.6-py2-none-any.whl
Collecting ipaddress (from cryptography>=1.3.4->pyOpenSSL>=0.13; extra == "security"->requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading ipaddress-1.0.17-py2-none-any.whl
Collecting cffi>=1.4.1 (from cryptography>=1.3.4->pyOpenSSL>=0.13; extra == "security"->requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading cffi-1.8.2-cp27-cp27mu-manylinux1_x86_64.whl (385kB)
    100% |████████████████████████████████| 389kB 2.6MB/s 
Collecting pycparser (from cffi>=1.4.1->cryptography>=1.3.4->pyOpenSSL>=0.13; extra == "security"->requests[security]==2.10.0->Pikaptcha===0.1)
  Downloading pycparser-2.14.tar.gz (223kB)
    100% |████████████████████████████████| 225kB 3.2MB/s 
Building wheels for collected packages: ndg-httpsclient, cryptography, pycparser
  Running setup.py bdist_wheel for ndg-httpsclient ... done
  Stored in directory: /root/.cache/pip/wheels/44/6b/b1/eef816d523c0aa93f350fd2a78d74769e010e2f26623921b76
  Running setup.py bdist_wheel for cryptography ... error
  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-FQPeqJ/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" bdist_wheel -d /tmp/tmp5T0BGWpip-wheel- --python-tag cp27:
  c/_cffi_backend.c:15:17: fatal error: ffi.h: Datei oder Verzeichnis nicht gefunden
  compilation terminated.
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-build-FQPeqJ/cryptography/setup.py", line 334, in <module>
      **keywords_with_side_effects(sys.argv)
    File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
      _setup_distribution = dist = klass(attrs)
    File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 269, in __init__
      self.fetch_build_eggs(attrs['setup_requires'])
    File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 313, in fetch_build_eggs
      replace_conflicting=True,
    File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 826, in resolve
      dist = best[req.key] = env.best_match(req, ws, installer)
    File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1092, in best_match
      return self.obtain(req, installer)
    File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1104, in obtain
      return installer(requirement)
    File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 380, in fetch_build_egg
      return cmd.easy_install(req)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 663, in easy_install
      return self.install_item(spec, dist.location, tmpdir, deps)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 693, in install_item
      dists = self.install_eggs(spec, download, tmpdir)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 873, in install_eggs
      return self.build_and_install(setup_script, setup_base)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1101, in build_and_install
      self.run_setup(setup_script, setup_base, args)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1089, in run_setup
      raise DistutilsError("Setup script exited with %s" % (v.args[0],))
  distutils.errors.DistutilsError: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

  ----------------------------------------
  Failed building wheel for cryptography
  Running setup.py clean for cryptography
  Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-FQPeqJ/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" clean --all:
  c/_cffi_backend.c:15:17: fatal error: ffi.h: Datei oder Verzeichnis nicht gefunden
  compilation terminated.
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "/tmp/pip-build-FQPeqJ/cryptography/setup.py", line 334, in <module>
      **keywords_with_side_effects(sys.argv)
    File "/usr/lib/python2.7/distutils/core.py", line 111, in setup
      _setup_distribution = dist = klass(attrs)
    File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 269, in __init__
      self.fetch_build_eggs(attrs['setup_requires'])
    File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 313, in fetch_build_eggs
      replace_conflicting=True,
    File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 826, in resolve
      dist = best[req.key] = env.best_match(req, ws, installer)
    File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1092, in best_match
      return self.obtain(req, installer)
    File "/usr/lib/python2.7/dist-packages/pkg_resources/__init__.py", line 1104, in obtain
      return installer(requirement)
    File "/usr/lib/python2.7/dist-packages/setuptools/dist.py", line 380, in fetch_build_egg
      return cmd.easy_install(req)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 663, in easy_install
      return self.install_item(spec, dist.location, tmpdir, deps)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 693, in install_item
      dists = self.install_eggs(spec, download, tmpdir)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 873, in install_eggs
      return self.build_and_install(setup_script, setup_base)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1101, in build_and_install
      self.run_setup(setup_script, setup_base, args)
    File "/usr/lib/python2.7/dist-packages/setuptools/command/easy_install.py", line 1089, in run_setup
      raise DistutilsError("Setup script exited with %s" % (v.args[0],))
  distutils.errors.DistutilsError: Setup script exited with error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

  ----------------------------------------
  Failed cleaning build dir for cryptography
  Running setup.py bdist_wheel for pycparser ... done
  Stored in directory: /root/.cache/pip/wheels/9b/f4/2e/d03e949a551719a1ffcb659f2c63d8444f4df12e994ce52112
Successfully built ndg-httpsclient pycparser
Failed to build cryptography
Installing collected packages: idna, pyasn1, enum34, ipaddress, pycparser, cffi, cryptography, pyOpenSSL, ndg-httpsclient, requests, selenium, Pikaptcha
  Running setup.py install for cryptography ... error
    Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-FQPeqJ/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-NPfki1-record/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_py
    creating build
    creating build/lib.linux-x86_64-2.7
    creating build/lib.linux-x86_64-2.7/cryptography
    copying src/cryptography/utils.py -> build/lib.linux-x86_64-2.7/cryptography
    copying src/cryptography/__init__.py -> build/lib.linux-x86_64-2.7/cryptography
    copying src/cryptography/fernet.py -> build/lib.linux-x86_64-2.7/cryptography
    copying src/cryptography/exceptions.py -> build/lib.linux-x86_64-2.7/cryptography
    copying src/cryptography/__about__.py -> build/lib.linux-x86_64-2.7/cryptography
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat
    copying src/cryptography/hazmat/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat
    creating build/lib.linux-x86_64-2.7/cryptography/x509
    copying src/cryptography/x509/oid.py -> build/lib.linux-x86_64-2.7/cryptography/x509
    copying src/cryptography/x509/general_name.py -> build/lib.linux-x86_64-2.7/cryptography/x509
    copying src/cryptography/x509/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/x509
    copying src/cryptography/x509/extensions.py -> build/lib.linux-x86_64-2.7/cryptography/x509
    copying src/cryptography/x509/base.py -> build/lib.linux-x86_64-2.7/cryptography/x509
    copying src/cryptography/x509/name.py -> build/lib.linux-x86_64-2.7/cryptography/x509
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings
    copying src/cryptography/hazmat/bindings/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    copying src/cryptography/hazmat/primitives/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    copying src/cryptography/hazmat/primitives/padding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    copying src/cryptography/hazmat/primitives/keywrap.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    copying src/cryptography/hazmat/primitives/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    copying src/cryptography/hazmat/primitives/serialization.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    copying src/cryptography/hazmat/primitives/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    copying src/cryptography/hazmat/primitives/constant_time.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    copying src/cryptography/hazmat/primitives/cmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
    copying src/cryptography/hazmat/backends/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
    copying src/cryptography/hazmat/backends/interfaces.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
    copying src/cryptography/hazmat/backends/multibackend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
    copying src/cryptography/hazmat/bindings/commoncrypto/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
    copying src/cryptography/hazmat/bindings/commoncrypto/binding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/commoncrypto
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
    copying src/cryptography/hazmat/bindings/openssl/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
    copying src/cryptography/hazmat/bindings/openssl/binding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
    copying src/cryptography/hazmat/bindings/openssl/_conditional.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/bindings/openssl
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
    copying src/cryptography/hazmat/primitives/kdf/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
    copying src/cryptography/hazmat/primitives/kdf/x963kdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
    copying src/cryptography/hazmat/primitives/kdf/concatkdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
    copying src/cryptography/hazmat/primitives/kdf/hkdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
    copying src/cryptography/hazmat/primitives/kdf/kbkdf.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
    copying src/cryptography/hazmat/primitives/kdf/pbkdf2.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/kdf
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
    copying src/cryptography/hazmat/primitives/asymmetric/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
    copying src/cryptography/hazmat/primitives/asymmetric/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
    copying src/cryptography/hazmat/primitives/asymmetric/ec.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
    copying src/cryptography/hazmat/primitives/asymmetric/padding.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
    copying src/cryptography/hazmat/primitives/asymmetric/rsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
    copying src/cryptography/hazmat/primitives/asymmetric/dh.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
    copying src/cryptography/hazmat/primitives/asymmetric/dsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/asymmetric
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/interfaces
    copying src/cryptography/hazmat/primitives/interfaces/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/interfaces
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
    copying src/cryptography/hazmat/primitives/twofactor/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
    copying src/cryptography/hazmat/primitives/twofactor/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
    copying src/cryptography/hazmat/primitives/twofactor/hotp.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
    copying src/cryptography/hazmat/primitives/twofactor/totp.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/twofactor
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
    copying src/cryptography/hazmat/primitives/ciphers/algorithms.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
    copying src/cryptography/hazmat/primitives/ciphers/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
    copying src/cryptography/hazmat/primitives/ciphers/base.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
    copying src/cryptography/hazmat/primitives/ciphers/modes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/primitives/ciphers
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
    copying src/cryptography/hazmat/backends/commoncrypto/backend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
    copying src/cryptography/hazmat/backends/commoncrypto/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
    copying src/cryptography/hazmat/backends/commoncrypto/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
    copying src/cryptography/hazmat/backends/commoncrypto/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
    copying src/cryptography/hazmat/backends/commoncrypto/ciphers.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/commoncrypto
    creating build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/utils.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/backend.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/__init__.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/x509.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/ec.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/hashes.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/encode_asn1.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/rsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/hmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/decode_asn1.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/dsa.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/ciphers.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    copying src/cryptography/hazmat/backends/openssl/cmac.py -> build/lib.linux-x86_64-2.7/cryptography/hazmat/backends/openssl
    running egg_info
    writing requirements to src/cryptography.egg-info/requires.txt
    writing src/cryptography.egg-info/PKG-INFO
    writing top-level names to src/cryptography.egg-info/top_level.txt
    writing dependency_links to src/cryptography.egg-info/dependency_links.txt
    writing entry points to src/cryptography.egg-info/entry_points.txt
    warning: manifest_maker: standard file '-c' not found

    reading manifest file 'src/cryptography.egg-info/SOURCES.txt'
    reading manifest template 'MANIFEST.in'
    no previously-included directories found matching 'docs/_build'
    warning: no previously-included files matching '*' found under directory 'vectors'
    writing manifest file 'src/cryptography.egg-info/SOURCES.txt'
    running build_ext
    generating cffi module 'build/temp.linux-x86_64-2.7/_padding.c'
    creating build/temp.linux-x86_64-2.7
    generating cffi module 'build/temp.linux-x86_64-2.7/_constant_time.c'
    generating cffi module 'build/temp.linux-x86_64-2.7/_openssl.c'
    building '_openssl' extension
    creating build/temp.linux-x86_64-2.7/build
    creating build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7
    x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -fno-strict-aliasing -Wdate-time -D_FORTIFY_SOURCE=2 -g -fstack-protector-strong -Wformat -Werror=format-security -fPIC -I/usr/include/python2.7 -c build/temp.linux-x86_64-2.7/_openssl.c -o build/temp.linux-x86_64-2.7/build/temp.linux-x86_64-2.7/_openssl.o
    build/temp.linux-x86_64-2.7/_openssl.c:433:30: fatal error: openssl/opensslv.h: Datei oder Verzeichnis nicht gefunden
    compilation terminated.
    error: command 'x86_64-linux-gnu-gcc' failed with exit status 1

    ----------------------------------------
Command "/usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-FQPeqJ/cryptography/setup.py';exec(compile(getattr(tokenize, 'open', open)(__file__).read().replace('\r\n', '\n'), __file__, 'exec'))" install --record /tmp/pip-NPfki1-record/install-record.txt --single-version-externally-managed --compile" failed with error code 1 in /tmp/pip-build-FQPeqJ/cryptography/                                                                                                                                                                                                                                                                                                                                               
You are using pip version 8.1.1, however version 8.1.2 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.                                                                                                                                                                                                                                                                                                
pip install git+https://github.com/sriyegna/pikaptcha  6,68s user 0,63s system 2% cpu 4:25,14 total)

What can i do?

I'm using Ubuntu 16.04 and installed pip with sudo apt-get install python-pip before.

Edit: Same error after pip install --upgrade pip

The text was updated successfully, but these errors were encountered:

sriyegna · 2016-09-10T22:27:13Z

apt-get install gcc should fix this. If not, reopen

antiremy · 2016-09-23T00:20:29Z

If anyone is still having this issue sudo apt-get install build-essential libssl-dev libffi-dev python-dev fixed it for me

TheBigFatTony · 2017-07-12T09:05:11Z

On Fedora 26 with Python 3.6, I had to install the following packages first:
sudo dnf install gcc libffi-devel python-devel openssl-devel (Source: https://cryptography.io/en/latest/installation/)
Furthermore, I noticed that this package is necessary, too: sudo dnf install redhat-rpm-config.

edvinmolla · 2019-06-15T12:57:57Z

If anyone is still having this issue sudo apt-get install build-essential libssl-dev libffi-dev python-dev fixed it for me

Strangely this fixed my issue as well.

Rupeshiya · 2020-09-14T15:13:26Z

How to fix this in windows??

sriyegna closed this as completed Sep 10, 2016

jonluca mentioned this issue Dec 14, 2017

installation failed jonluca/Anubis#7

Closed

licryle mentioned this issue Jul 18, 2018

Use new helpers, add backup/restore and uwsgi YunoHost-Apps/ffsync_ynh#6

Merged

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Failed building wheel for cryptography #50

Failed building wheel for cryptography #50

slideup-benni commented Sep 10, 2016 •

edited by sriyegna

sriyegna commented Sep 10, 2016

antiremy commented Sep 23, 2016

TheBigFatTony commented Jul 12, 2017

edvinmolla commented Jun 15, 2019

Rupeshiya commented Sep 14, 2020

Failed building wheel for cryptography #50

Failed building wheel for cryptography #50

Comments

slideup-benni commented Sep 10, 2016 • edited by sriyegna

sriyegna commented Sep 10, 2016

antiremy commented Sep 23, 2016

TheBigFatTony commented Jul 12, 2017

edvinmolla commented Jun 15, 2019

Rupeshiya commented Sep 14, 2020

slideup-benni commented Sep 10, 2016 •

edited by sriyegna