Create main.py

balapriyac · web-flow · commit e524ef879e7b · 2024-07-16T10:15:15.000+05:30
diff --git a/better-python/main.py b/better-python/main.py
@@ -0,0 +1,31 @@
+# Prefer list comprehensions over loops
+data = [{'name': 'Alice', 'age': 25, 'score': 90},
+    	{'name': 'Bob', 'age': 30, 'score': 85},
+    	{'name': 'Charlie', 'age': 22, 'score': 95}]
+
+# Using a loop
+result = []
+for row in data:
+    if row['score'] > 85:
+        result.append(row['name'])
+
+print(result)
+
+# Using a list comprehension
+result = [row['name'] for row in data if row['score'] > 85]
+
+# Generator function to read and process a CSV file
+import csv
+from typing import Generator, Dict
+
+def read_large_csv_with_generator(file_path: str) -> Generator[Dict[str, str], None, None]:
+    with open(file_path, 'r') as file:
+        reader = csv.DictReader(file)
+        for row in reader:
+            yield row
+
+# Path to a sample CSV file
+file_path = 'large_data.csv'
+
+for row in read_large_csv_with_generator(file_path):
+    print(row)
