diff --git a/e1120.py b/e1120.py
index 0f7b3643..96dc52df 100644
--- a/e1120.py
+++ b/e1120.py
@@ -1,4 +1,5 @@
 def func(a, b):
     return a, b
 
+a= 10
 func(a)
diff --git a/requirements.txt b/requirements.txt
index 9ec94f18..72ad885b 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,18 +1,14 @@
 jupyter-core
 jupyter-console
-scikit_learn
-rinoh_typeface_texgyrepagella
-testpath,pytest-aiohttp
-sphinxcontrib_applehelp
+testpath
+pytest-aiohttp
 idna
 pyasn1
 pytest-benchmark
 requests-cache
 py
 flake8-polyfill
-typing_extensions
 docutils
-keras_tuner
 mistune
 jinja2
 coverage
@@ -23,18 +19,11 @@ pytest-sphinx
 plotly
 requests-oauthlib
 testfixtures
-pytest_pythonpath
 ipython-genutils
 flake8
 importlib-metadata
-requests_oauthlib
-py_cpuinfo
-rinoh_typeface_dejavuserif
 fbprophet
-pyasn1_modules
-prometheus_client
 sphinxcontrib-email
-sphinx_git
 ephem
 flake8-docstrings
 korean-lunar-calendar
@@ -43,19 +32,13 @@ keras-preprocessing
 cchardet
 sphinxcontrib-devhelp
 jupyterlab-server
-absl_py
 babel
 tabulate
 zipp
-rinoh_typeface_texgyreheros
-pytest_env
-google_pasta
-sphinxcontrib_jsmath
 gitdb
 widgetsnbextension
 pyhamcrest
 absl-py
-restructuredtext_lint
 pbr
 google-pasta
 imagesize
@@ -64,32 +47,23 @@ toml
 urllib3
 pathspec
 pytest
-jupyterlab_server
 pytest-docs
 py-cpuinfo
 keras-tuner
-pytest_profiling
 aiodns
-sphinxcontrib_devhelp
-sphinx_argparse
 service-identity
 wrapt
 smmap
 pywinpty
 queuelib
-requests_cache
 atomicwrites
 beautifulsoup4
 automat
 restructuredtext-lint
 pluggy
-pytest_mock
-rinoh_typeface_texgyrecursor
 pexpect
 tqdm
 unidecode
-lazy_object_proxy
-sphinxcontrib_email
 decorator
 colorama
 flake8-commas
@@ -106,10 +80,6 @@ json5
 ipython
 future
 flake8-sfs
-sphinx_rtd_theme
-flake8_isort
-ipython_genutils
-setuptools_git
 google-auth-oauthlib
 rinohtype
 zope.interface
@@ -121,9 +91,7 @@ typed-ast
 stevedore
 jedi
 click
-jupyter_console
 wcwidth
-google_auth_oauthlib
 hyperlink
 isort
 pycares
@@ -131,7 +99,6 @@ rinoh-typeface-texgyreheros
 black
 yarl
 flake8-bandit
-mypy_extensions
 markdown
 sphinx-sitemap
 pytest-pycharm
@@ -144,45 +111,33 @@ cython
 ipywidgets
 sphinxcontrib-packages
 sphinxcontrib-applehelp
-python_dateutil
 sphinx-argparse
 pygments
 pytest-flake8
 protego
 pydispatcher
-jupyter_core
 protobuf
-sphinx_copybutton
 opt-einsum
 typeguard
-more_itertools
 aiocache
 rinoh-typeface-dejavuserif
-service_identity
-pytest_cov
 pycodestyle
 cssselect
 convertdate
 aiohttp
 regex
 pywin32
-sphinx_dust
 appnope
 brotlipy
-pytest_aiohttp
 numpy
 tornado
 python-dotenv
 w3lib
 google-auth
-pytest_asyncio
 kiwisolver
 sphinx-autoapi
-flake8_mypy
-sphinxcontrib_images
 async-timeout
 jsonschema
-sphinxcontrib_htmlhelp
 pydocstyle
 qtconsole
 doc8
@@ -190,19 +145,13 @@ bleach
 grpcio
 prometheus-client
 werkzeug
-sphinxcontrib_qthelp
 ipykernel
 recommonmark
-tensorflow_estimator
 zope_interface
-flake8_exceptions
-pytest_benchmark
 send2trash
 mccabe
 pandocfilters
 entrypoints
-sphinx_autoapi
-flake8_pytest
 gast
 astor
 ptyprocess
@@ -210,15 +159,11 @@ flake8-black
 flake8-colors
 tensorboard
 backcall
-keras_preprocessing
 soupsieve
 pyyaml
 cffi
 ruia
-pytest_pycharm
 bandit
-typed_ast
-pytest_flake8
 termcolor
 setuptools-git
 sphinx-dust
@@ -227,7 +172,6 @@ nbformat
 parso
 terminado
 rinoh-typeface-texgyrepagella
-opt_einsum
 scipy
 jupyter-client
 sphinxcontrib-htmlhelp
@@ -235,7 +179,6 @@ gitpython
 jupyterlab
 aiostream
 flake8-pytest
-sphinxcontrib_packages
 cycler
 multidict
 sphinxcontrib-images
@@ -244,51 +187,35 @@ python-dateutil
 tensorflow
 keras-applications
 sphinxcontrib-jsmath
-flake8_commas
 pytest-asyncio
 lazy-object-proxy
 lunarcalendar
 flake8-comprehensions
 flake8-mypy
 notebook
-flake8_polyfill
 pandas
 pyparsing
 constantly
 cryptography
-importlib_metadata
 prompt-toolkit
-pytest_fixture_config
-prompt_toolkit
 twisted
-flake8_black
-pytest_sugar
 cmdstanpy
 jupyter
 pyflakes
 webencodings
 scikit-learn
 pytzdata
-pytest_sphinx
 certifi
 joblib
-pytest_docs
-sphinxcontrib_fulltoc
 pytest-mock
-flake8_docstrings
 typing-extensions
 traitlets
 flake8-exceptions
-flake8_colors
 pendulum
 pickleshare
 terminaltables
-google_auth
 cachetools
 nbconvert
-jupyter_client
-sphinx_sitemap
-sphinxcontrib_serializinghtml
 wheel
 pytz
 snowballstemmer
@@ -298,30 +225,22 @@ pytest-env
 pycparser
 sphinx
 sphinxcontrib-qthelp
-flake8_sfs
 aiofiles
-keras_applications
 nbsphinx
-python_dotenv
 astroid
 tensorflow-estimator
 pystan
 pytest-pythonpath
 mypy-extensions
 sphinx-rtd-theme
-flake8_bandit
 qtpy
-korean_lunar_calendar
 sphinx-git
 parsel
-flake8_comprehensions
 sphinx-copybutton
 retrying
 oauthlib
-async_timeout
 matplotlib
 incremental
-tensorflow_addons
 rsa
 chardet
 flake8-isort