install error in package ssh2-python

[FengJiDetecon]

Describe the bug
the problem is caused first by
from ssh2.error_codes import LIBSSH2_ERROR_EAGAI
which tries to load error_codes.cpython-37m-darwin.so but fails
the reason is that
'/private/var/folders/zb/t0r1t7451tx4vfhc9jbk2rzr0000gn/T/pip-install-vik15j8x/ssh2-python_fc1f843181664c9aa95e798b0c981b59/build_dir/src/libssh2.1.dylib' (no such file)

To Reproduce

Steps to reproduce the behavior:

1. pip3 install parallel-ssh

Expected behavior
installed

Actual behaviour
error msg

Screenshots

Additional information
on Mac os
cmake and gcc installed
cmake version 3.24.2
gcc 12.2.0

[plamendelchev]

Hi, I had the same problem. I managed to solve it by installing libssh2 with brew and setting up LDFLAGS and CPPFLAGS:

$ brew install libssh2

$ grep libssh2 ~/.zshrc
export LDFLAGS="-L${HOME}/brew/opt/libssh2/lib"
export CPPFLAGS="-I${HOME}/brew/opt/libssh2/include"

$ pip3 cache purge

$ pip3 install parallel-ssh
...
Successfully installed gevent-22.10.2 greenlet-2.0.1 parallel-ssh-2.12.0 ssh-python-1.0.0 ssh2-python-1.0.0 zope.event-4.6 zope.interface-5.5.2

$ cat test.py
from pssh.clients import SSHClient

client = SSHClient(host='github.com', user='git', port=22, pkey='~/.ssh/github')
host_out = client.run_command('hostname')
for line in host_out.stdout:
    print(line)
for line in host_out.stderr:
    print(line)

$ python3 test.py
Invalid command: 'hostname'
  You appear to be using ssh to clone a git:// URL.
  Make sure your core.gitProxy config option and the
  GIT_PROXY_COMMAND environment variable are NOT set.

[jandvorak-sol60279]

Hi, I had the same problem. I managed to solve it by installing libssh2 with brew and setting up LDFLAGS and CPPFLAGS:

$ brew install libssh2

$ grep libssh2 ~/.zshrc
export LDFLAGS="-L${HOME}/brew/opt/libssh2/lib"
export CPPFLAGS="-I${HOME}/brew/opt/libssh2/include"

$ pip3 cache purge

$ pip3 install parallel-ssh
...
Successfully installed gevent-22.10.2 greenlet-2.0.1 parallel-ssh-2.12.0 ssh-python-1.0.0 ssh2-python-1.0.0 zope.event-4.6 zope.interface-5.5.2

$ cat test.py
from pssh.clients import SSHClient

client = SSHClient(host='github.com', user='git', port=22, pkey='~/.ssh/github')
host_out = client.run_command('hostname')
for line in host_out.stdout:
    print(line)
for line in host_out.stderr:
    print(line)

$ python3 test.py
Invalid command: 'hostname'
  You appear to be using ssh to clone a git:// URL.
  Make sure your core.gitProxy config option and the
  GIT_PROXY_COMMAND environment variable are NOT set.

had the same issue and with some modification went to success

need to change flags path

export LDFLAGS="-L$(dirname $(which brew))/../opt/libssh2/lib"
export CPPFLAGS="-I$(dirname $(which brew))/../opt/libssh2/include"

install cmake (obviously)

brew install cmake

after that i got another (openssl) error

CMake Error at /opt/homebrew/Cellar/cmake/3.25.1/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:230 (message):
        Could NOT find OpenSSL, try to set the path to OpenSSL root folder in the
        system variable OPENSSL_ROOT_DIR (missing: OPENSSL_CRYPTO_LIBRARY
        OPENSSL_INCLUDE_DIR)

even tho openssl was in some obscure version, i did install it thru brew

brew install openssl

crate links

brew link --force openssl

and hallelujah ... installing parallel-ssh went finally ok and working (using fresh venv)

[FengJi2021]

both not working for me? any trouble shooting suggestion? i think this package using cpython to get openssl and problem shall be compiler lib link.

[rvencu]

Same, it happens to me on macOS sequoia with M3. For python 3.11 or older it breaks at

[  7%] Building C object src/CMakeFiles/libssh2.dir/crypt.c.o
      /private/var/folders/my/hvn4fhm9119c1kpd2zgq252w0000gn/T/pip-install-p2qpfboq/ssh2-python_7aa2cb2d0fef475e9bfb91b81e3380fc/libssh2/libssh2/src/crypt.c:62:5: error: incompatible function pointer types initializing 'int (*)(LIBSSH2_SESSION *, unsigned char *, size_t, void **)' (aka 'int (*)(struct _LIBSSH2_SESSION *, unsigned char *, unsigned long, void **)') with an expression of type 'int (LIBSSH2_SESSION *, unsigned char *, void **)' (aka 'int (struct _LIBSSH2_SESSION *, unsigned char *, void **)') [-Wincompatible-function-pointer-types]
         62 |     crypt_none_crypt,
            |     ^~~~~~~~~~~~~~~~
      1 error generated.
      make[2]: *** [src/CMakeFiles/libssh2.dir/crypt.c.o] Error 1
      make[1]: *** [src/CMakeFiles/libssh2.dir/all] Error 2
      make: *** [all] Error 2
      Traceback (most recent call last):
        File "/Users/richard/.venv/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 353, in <module>
          main()
        File "/Users/richard/.venv/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 335, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/Users/richard/.venv/lib/python3.11/site-packages/pip/_vendor/pyproject_hooks/_in_process/_in_process.py", line 149, in prepare_metadata_for_build_wheel
          return hook(metadata_directory, config_settings)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "/private/var/folders/my/hvn4fhm9119c1kpd2zgq252w0000gn/T/pip-build-env-1rym97ox/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 373, in prepare_metadata_for_build_wheel
          self.run_setup()
        File "/private/var/folders/my/hvn4fhm9119c1kpd2zgq252w0000gn/T/pip-build-env-1rym97ox/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 516, in run_setup
          super().run_setup(setup_script=setup_script)
        File "/private/var/folders/my/hvn4fhm9119c1kpd2zgq252w0000gn/T/pip-build-env-1rym97ox/overlay/lib/python3.11/site-packages/setuptools/build_meta.py", line 318, in run_setup
          exec(code, locals())
        File "<string>", line 32, in <module>
        File "/private/var/folders/my/hvn4fhm9119c1kpd2zgq252w0000gn/T/pip-install-p2qpfboq/ssh2-python_7aa2cb2d0fef475e9bfb91b81e3380fc/_setup_libssh2.py", line 39, in build_ssh2
          check_call('cmake --build . --config Release', shell=True, env=os.environ)
        File "/opt/homebrew/Cellar/[email protected]/3.11.10/Frameworks/Python.framework/Versions/3.11/lib/python3.11/subprocess.py", line 413, in check_call
          raise CalledProcessError(retcode, cmd)
      subprocess.CalledProcessError: Command 'cmake --build . --config Release' returned non-zero exit status 2.
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

Python3.12 has more issues, maybe the package is not compatible yet.