cannot install this library :
Command Used : pip install ssh2-python
I installed all dependencies like wheel and cmake when i run the command it first builds the library and then its shows the error.

ERROR:
ERROR: Command errored out with exit status 1:
command: /home/kahtras/Projects/Flask_serverpanel/flask-env/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-02xlnf7r/ssh2-python/setup.py'"'"'; file='"'"'/tmp/pip-install-02xlnf7r/ssh2-python/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /tmp/pip-record-5qmfop07/install-record.txt --single-version-externally-managed --compile --install-headers /home/kahtras/Projects/Flask_serverpanel/flask-env/include/site/python3.8/ssh2-python
cwd: /tmp/pip-install-02xlnf7r/ssh2-python/
Complete output (149 lines):
CMake Warning (dev) at /home/kahtras/Projects/Flask_serverpanel/flask-env/lib/python3.8/site-packages/cmake/data/share/cmake-3.18/Modules/BundleUtilities.cmake:233 (message):
Policy CMP0080 is not set: BundleUtilities cannot be included at configure
time. Run "cmake --help-policy CMP0080" for policy details. Use the
cmake_policy command to set the policy and suppress this warning.

Call Stack (most recent call first):
  /home/kahtras/Projects/Flask_serverpanel/flask-env/lib/python3.8/site-packages/cmake/data/share/cmake-3.18/Modules/BundleUtilities.cmake:242 (_warn_cmp0080)
  tests/CMakeLists.txt:39 (include)
This warning is for project developers.  Use -Wno-dev to suppress it.

-- The following features have been enabled:

 * Shared library, creating libssh2 as a shared library (.so/.dll)
 * Compression, using zlib for compression
 * "none" cipher
 * "none" MAC
 * diffie-hellman-group-exchange-sha1, "new" diffie-hellman-group-exchange-sha1 method

-- The following REQUIRED packages have been found:

 * ZLIB
 * OpenSSL

-- The following features have been disabled:

 * Logging, Logging of execution with debug trace

-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/pip-install-02xlnf7r/ssh2-python/src
[ 23%] Built target libssh2
[ 23%] Built target copy_example_dependencies
[ 25%] Built target example-sftp_write_nonblock
[ 27%] Built target example-scp
[ 29%] Built target example-sftp_mkdir
[ 31%] Built target example-scp_write_nonblock
[ 33%] Built target example-sftp
[ 35%] Built target example-scp_write
[ 37%] Built target example-sftp_nonblock
[ 39%] Built target example-sftp_write
[ 41%] Built target example-sftpdir_nonblock
[ 42%] Built target example-direct_tcpip
[ 44%] Built target example-sftp_mkdir_nonblock
[ 46%] Built target example-ssh2_agent
[ 47%] Built target example-sftp_write_sliding
[ 49%] Built target example-scp_nonblock
[ 51%] Built target example-sftp_RW_nonblock
[ 53%] Built target example-sftp_append
[ 55%] Built target example-ssh2
[ 57%] Built target example-sftpdir
[ 59%] Built target example-ssh2_exec
[ 61%] Built target example-ssh2_echo
[ 63%] Built target example-subsystem_netconf
[ 65%] Built target example-tcpip-forward
[ 65%] Built target copy_test_dependencies
[ 67%] Built target openssh_fixture
[ 69%] Built target session_fixture
[ 71%] Built target runner
[ 73%] Built target test_public_key_auth_succeeds_with_correct_rsa_key
[ 75%] Built target test_password_auth_fails_with_wrong_password
[ 77%] Built target test_public_key_auth_fails_with_wrong_key
[ 79%] Built target test_password_auth_fails_with_wrong_username
[ 81%] Built target test_hostkey_hash
[ 83%] Built target test_password_auth_succeeds_with_correct_credentials
[ 84%] Built target test_keyboard_interactive_auth_fails_with_wrong_response
[ 86%] Built target test_public_key_auth_succeeds_with_correct_ed25519_key_from_mem
[ 88%] Built target test_public_key_auth_succeeds_with_correct_encrypted_rsa_key
[ 90%] Built target test_keyboard_interactive_auth_succeeds_with_correct_response
[ 92%] Built target test_public_key_auth_succeeds_with_correct_ed25519_key
[ 94%] Built target test_public_key_auth_succeeds_with_correct_encrypted_ed25519_key
[ 96%] Built target test_public_key_auth_succeeds_with_correct_rsa_openssh_key
[ 98%] Built target test_public_key_auth_succeeds_with_correct_dsa_key
[100%] Built target test_hostkey
running install
running build
running build_py
creating build
creating build/lib.linux-x86_64-3.8
creating build/lib.linux-x86_64-3.8/ssh2
copying ssh2/__init__.py -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/_version.py -> build/lib.linux-x86_64-3.8/ssh2
running egg_info
writing ssh2_python.egg-info/PKG-INFO
writing dependency_links to ssh2_python.egg-info/dependency_links.txt
writing top-level names to ssh2_python.egg-info/top_level.txt
reading manifest file 'ssh2_python.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no previously-included files matching '*' found under directory 'docker'
warning: no previously-included files found matching '.travis.yml'
writing manifest file 'ssh2_python.egg-info/SOURCES.txt'
copying ssh2/__init__.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/agent.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/agent.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/agent.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/c_pkey.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/c_sftp.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/c_ssh2.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/c_stat.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/channel.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/channel.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/channel.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/error_codes.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/error_codes.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/error_codes.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/exceptions.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/exceptions.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/fileinfo.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/fileinfo.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/fileinfo.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/knownhost.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/knownhost.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/knownhost.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/listener.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/listener.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/listener.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/pkey.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/pkey.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/pkey.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/publickey.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/publickey.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/publickey.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/session.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/session.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/session.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/sftp.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/sftp.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/sftp.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/sftp_handle.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/sftp_handle.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/sftp_handle.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/statinfo.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/statinfo.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/statinfo.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/utils.c -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/utils.pxd -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/utils.pyx -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/libssh2.so -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/libssh2.so.1 -> build/lib.linux-x86_64-3.8/ssh2
copying ssh2/libssh2.so.1.0.1 -> build/lib.linux-x86_64-3.8/ssh2
running build_ext
building 'ssh2.channel' extension
creating build/temp.linux-x86_64-3.8
creating build/temp.linux-x86_64-3.8/ssh2
x86_64-linux-gnu-gcc -pthread -Wno-unused-result -Wsign-compare -DNDEBUG -g -fwrapv -O2 -Wall -g -fstack-protector-strong -Wformat -Werror=format-security -g -fwrapv -O2 -g -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -Ilibssh2/include -I/home/kahtras/Projects/Flask_serverpanel/flask-env/include -I/usr/include/python3.8 -c ssh2/channel.c -o build/temp.linux-x86_64-3.8/ssh2/channel.o -O3
ssh2/channel.c:4:10: fatal error: Python.h: No such file or directory
    4 | #include "Python.h"
      |          ^~~~~~~~~~
compilation terminated.
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
----------------------------------------

ERROR: Command errored out with exit status 1: /home/kahtras/Projects/Flask_serverpanel/flask-env/bin/python3 -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/tmp/pip-install-02xlnf7r/ssh2-python/setup.py'"'"'; file='"'"'/tmp/pip-install-02xlnf7r/ssh2-python/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(file);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, file, '"'"'exec'"'"'))' install --record /tmp/pip-record-5qmfop07/install-record.txt --single-version-externally-managed --compile --install-headers /home/kahtras/Projects/Flask_serverpanel/flask-env/include/site/python3.8/ssh2-python Check the logs for full command output.