Homework8

.github/workflows/main.yml

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+# This is a basic workflow to help you get started with Actions
+
+name: CI
+
+on: push
+
+jobs:
+  code_quality:
+    runs-on: ubuntu-latest
+    name: Checks with black, isort and possibly run tests
+    container: python:3.9
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+      - name: Run script
+        run: |
+          pip install flake8 isort pytest
+          ls -la
+          flake8 .
+          isort --check .
+          py.test tests

homework8/task01.py

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+"""
+We have a file that works as key-value storage, each line is represented
+as key and value separated by = symbol, example:
+
+name=kek
+last_name=top
+song_name=shadilay
+power=9001
+
+Values can be strings or integer numbers.
+If a value can be treated both as a number and a string,
+it is treated as number.
+
+Write a wrapper class for this key value storage that works like this:
+
+storage = KeyValueStorage('path_to_file.txt')
+that has its keys and values accessible
+as collection items and as attributes.
+Example:
+    storage['name'] # will be string 'kek'
+    storage.song_name # will be 'shadilay'
+    storage.power # will be integer 9001
+
+In case of attribute clash existing built-in attributes take precedence.
+In case when value cannot be assigned to an attribute
+(for example when there's a line 1=something) ValueError should be raised.
+File size is expected to be small,
+you are permitted to read it entirely into memory.
+
+"""
+
+from keyword import iskeyword
+
+
+class KeyValueStorage:
+    def __init__(self, filename):
+        self.storage = {}
+        with open(filename) as f:
+            text = f.read()
+        key_value = [x.split("=") for x in text.split()]
+        for key, value in key_value:
+            if iskeyword(key) or not key.isidentifier():
+                raise ValueError("Invalid key!")
+            if value.isdigit():
+                value = int(value)
+            self.storage[key] = value
+
+    def __getitem__(self, key):
+        return self.storage[key]
+
+    def __getattr__(self, key):
+        return self.storage[key]