Merge branch 'master' into python-join-strings

Author: brendaweles

python-for-loop/README.md

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+# Python for Loops: The Pythonic Way
+
+This folder provides the code examples for the Real Python tutorial [Python for Loops: The Pythonic Way](https://realpython.com/python-for-loop/).

python-for-loop/async_range.py

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+import asyncio
+
+
+class AsyncRange:
+    def __init__(self, start, end):
+        self.data = range(start, end)
+
+    async def __aiter__(self):
+        for index in self.data:
+            await asyncio.sleep(0.5)
+            yield index
+
+
+async def main():
+    async for index in AsyncRange(0, 5):
+        print(index)
+
+
+asyncio.run(main())

python-for-loop/break_continue.py

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+numbers = [1, 3, 5, 7, 9]
+target = 5
+for number in numbers:
+    print(f"Processing {number}...")
+    if number == target:
+        print(f"Target found {target}!")
+        break
+
+numbers = [1, 2, 3, 4, 5, 6]
+for number in numbers:
+    print(f"{number = }")
+    if number % 2 != 0:
+        continue
+    print(f"{number} is even!")

python-for-loop/built_in_types.py

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+numbers = [1, 2, 3, 4]
+for number in numbers:
+    print(number)
+
+person = ("Jane", 25, "Python Dev", "Canada")
+for field in person:
+    print(field)
+
+text = "abcde"
+for character in text:
+    print(character)
+
+for index in range(5):
+    print(index)

python-for-loop/chained_lists.py

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+from itertools import chain
+
+first = [7, 6, 1]
+second = [4, 1]
+third = [8, 0, 6]
+
+for value in chain(first, second, third):
+    print(value**2)

python-for-loop/colors.py

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+colors = ["red", "green", "blue", "yellow"]
+
+for color in colors:
+    print(color)

python-for-loop/cubes.py

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+cubes = []
+for number in range(10):
+    cubes.append(number**3)
+print(cubes)
+
+cubes = [number**3 for number in range(10)]
+print(cubes)

python-for-loop/dictionaries.py

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+students = {
+    "Alice": 89.5,
+    "Bob": 76.0,
+    "Charlie": 92.3,
+    "Diana": 84.7,
+    "Ethan": 88.9,
+}
+for student in students:
+    print(student)
+
+for student in students:
+    print(student, "->", students[student])
+
+for student in students.keys():
+    print(student)
+
+teams = {
+    "Colorado": "Rockies",
+    "Chicago": "White Sox",
+    "Boston": "Red Sox",
+    "Minnesota": "Twins",
+    "Milwaukee": "Brewers",
+    "Seattle": "Mariners",
+}
+for team in teams.values():
+    print(team)
+
+for place, team in teams.items():
+    print(place, "->", team)

python-for-loop/else_clause.py

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+numbers = [1, 3, 5, 7, 9]
+target = 42
+
+for number in numbers:
+    print(f"Processing {number}...")
+    if number == target:
+        print(f"Target found {target}!")
+        break
+else:
+    print(f"Target no found {target}")

python-for-loop/exceptions.py

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+files = ["file1.txt", "file2.txt", "file3.txt"]
+
+for file in files:
+    with open(file, "r") as f:
+        print(f"Contents of {file}:")
+        print(f.read())
+
+for file in files:
+    try:
+        with open(file, "r") as f:
+            print(f"Contents of {file}:")
+            print(f.read())
+    except FileNotFoundError:
+        print(f"Error: {file} not found. Skipping.")