Upload 4 files

.devcontainer/devcontainer.json

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+{
+  "name": "Python 3",
+  // Or use a Dockerfile or Docker Compose file. More info: https://containers.dev/guide/dockerfile
+  "image": "mcr.microsoft.com/devcontainers/python:1-3.11-bullseye",
+  "customizations": {
+    "codespaces": {
+      "openFiles": [
+        "README.md",
+        "app.py"
+      ]
+    },
+    "vscode": {
+      "settings": {},
+      "extensions": [
+        "ms-python.python",
+        "ms-python.vscode-pylance"
+      ]
+    }
+  },
+  "updateContentCommand": "[ -f packages.txt ] && sudo apt update && sudo apt upgrade -y && sudo xargs apt install -y <packages.txt; [ -f requirements.txt ] && pip3 install --user -r requirements.txt; pip3 install --user streamlit; echo '✅ Packages installed and Requirements met'",
+  "postAttachCommand": {
+    "server": "streamlit run app.py --server.enableCORS false --server.enableXsrfProtection false"
+  },
+  "portsAttributes": {
+    "8501": {
+      "label": "Application",
+      "onAutoForward": "openPreview"
+    }
+  },
+  "forwardPorts": [
+    8501
+  ]
+}

setup.cfg

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+[metadata]
+description-file = README.md
+
+[isort]
+force_single_line=True
+known_first_party=chatbot
+line_length=120
+profile=black
+
+[flake8]
+# imported but unused in __init__.py, that's ok.
+per-file-ignores=*__init__.py:F401
+ignore=E203,W503,W605,F632,E266,E731,E712,E741
+max-line-length=120
+exclude=venv/

shell/format.sh

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+#!/bin/bash
+isort --sl .
+black --line-length 120 .
+flake8 .

shell/lint.sh

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+#!/bin/bash
+isort --check --sl -c .
+if ! [ $? -eq 0 ]
+then
+  echo "Please run \"sh shell/format.sh\" to format the code."
+  exit 1
+fi
+echo "no issues with isort"
+flake8 .
+if ! [ $? -eq 0 ]
+then
+  echo "Please fix the code style issue."
+  exit 1
+fi
+echo "no issues with flake8"
+black --check --line-length 120 .
+if ! [ $? -eq 0 ]
+then
+  echo "Please run \"sh shell/format.sh\" to format the code."
+    exit 1
+fi
+echo "no issues with black"
+echo "linting success!"