added task 1

.gitignore

+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+media/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+pip-wheel-metadata/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+db.sqlite3
+db.sqlite3-journal
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
+.python-version
+
+# pipenv
+#   According to pypa/pipenv#598, it is recommended to include Pipfile.lock in version control.
+#   However, in case of collaboration, if having platform-specific dependencies or dependencies
+#   having no cross-platform support, pipenv may install dependencies that don't work, or not
+#   install all needed dependencies.
+#Pipfile.lock
+
+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
+
+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
+
+# Environments
+.env
+.venv
+env/
+venv/
+ENV/
+env.bak/
+venv.bak/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/
+.dmypy.json
+dmypy.json
+
+# Pyre type checker
+.pyre/
+
+data/
+.idea

requirements.txt

+PyJWT==2.8.0

task_1.py

+import hashlib
+import json
+import hmac
+import base64
+
+import jwt
+
+
+SECRET_KEY = 'BwzBFTfdNJfVWi2CY1BK9KQBDdb5auQR'
+
+
+def get_token_by_lib(username: str) -> str:
+    payload = {"sub": f"{username}"}
+
+    return jwt.encode(payload, SECRET_KEY, algorithm='HS256')
+
+
+def get_token(username: str) -> str:
+
+    header = {"alg": "HS256", "typ": "JWT"}
+    payload = {"sub": f"{username}"}
+
+    encoded_header = base64.urlsafe_b64encode(
+        json.dumps(header).encode()
+    ).decode('utf-8')
+
+    encoded_payload = base64.urlsafe_b64encode(
+        json.dumps(payload).encode()
+    ).decode('utf-8')
+
+    unsigned_token = encoded_header + '.' + encoded_payload
+
+    signature = hmac.new(SECRET_KEY.encode(), unsigned_token.encode(), hashlib.sha256).digest()
+
+    return encoded_header + '.' + encoded_payload + '.' + base64.urlsafe_b64encode(signature).decode()