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import os
import platform
class Requirements:
'''Manage requirements for the project'''
def __init__(self):
self.package_path = os.path.dirname(os.path.realpath(__file__))
self.requirements_path = os.path.join(self.package_path, '..', '..', 'requirements.txt')
def get_list_requirements(self):
'''Get the list of requirements packages from requirements.txt'''
with open(self.requirements_path) as f:
requirements = f.read().splitlines()
# remove comments and empty lines
requirements = [line for line in requirements if not line.startswith('#')]
requirements = [line for line in requirements if line.strip()]
# extract package name from protocol
requirements = [line.split('/')[-1] for line in requirements if not line.startswith('git+')]
requirements = [line.split('/')[-1] for line in requirements if not line.startswith('http')]
requirements = [line.split('/')[-1] for line in requirements if not line.startswith('https')]
requirements = [line.split('/')[-1] for line in requirements if not line.startswith('ssh')]
requirements = [line.split('/')[-1] for line in requirements if not line.startswith('git')]
# sort alphabetically
requirements.sort()
return requirements
def get_os_name(self):
'''Get the name of the operating system'''
return platform.system()
def get_os_version(self):
'''Get the version of the operating system'''
return platform.version()
def get_python_version(self):
'''Get the version of Python installed'''
return platform.python_version()
def is_all_requirements_installed(self):
'''Check if all requirements are installed'''
requirements = self.get_list_requirements()
for requirement in requirements:
if not self.is_requirement_installed(requirement):
return False
return True
def is_requirement_installed(self, package_name):
'''Check if a package is installed'''
import importlib
try:
importlib.import_module(package_name)
return True
except ImportError:
return False
def get_version(self, package_name):
'''Get the version of a package'''
import pkg_resources
try:
return pkg_resources.get_distribution(package_name).version
except:
return None
def get_all_requirements_versions(self):
'''Get the versions of all requirements'''
requirements = self.get_list_requirements()
versions = {}
for requirement in requirements:
versions[requirement] = self.get_version(requirement)
return versions
def get_all_requirements_not_installed(self):
'''Get the list of all requirements not installed'''
requirements = self.get_list_requirements()
not_installed = {}
for requirement in requirements:
# if version is None then the package is not installed
if self.get_version(requirement) is None:
not_installed[requirement] = self.get_version(requirement)
return not_installed
if __name__ == '__main__':
'''Display information about the system and requirements'''
requirements_manager = Requirements()
# Skipping for now, because it assumes package have the same name as the python import itself, which is not true most sometimes.
# if not requirements_manager.is_all_requirements_installed():
# print("Error : Some requirements are missing")
# print("Please install all requirements from requirements.txt")
# print("You can install them by running the following command:")
# print("pip install -r requirements.txt")
print(f"System information:")
print(f"OS name : {requirements_manager.get_os_name()}")
print(f"OS version : {requirements_manager.get_os_version()}")
print(f"Python version : {requirements_manager.get_python_version()}")
# list all requirements and their versions
print("List of all requirements and their versions:")
all_req_versions = requirements_manager.get_all_requirements_versions()
for req_name, req_version in all_req_versions.items():
print(f"{req_name}=={req_version}")
print("List of all requirements not installed:")
all_req_not_installed = requirements_manager.get_all_requirements_not_installed()
for req_name, req_version in all_req_not_installed.items():
print(f"{req_name}=={req_version}")
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