92 lines
3.0 KiB
Python
92 lines
3.0 KiB
Python
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import pandas as pd
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import os
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from pathlib import Path
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def analyze_excel_structure(file_path):
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"""
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Analyze the structure of an Excel file and return detailed information.
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"""
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if not os.path.exists(file_path):
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return f"Error: File {file_path} does not exist"
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try:
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# Read Excel file to get sheet names
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excel_file = pd.ExcelFile(file_path)
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analysis = {
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'file_path': file_path,
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'file_size': os.path.getsize(file_path),
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'sheet_names': excel_file.sheet_names,
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'total_sheets': len(excel_file.sheet_names),
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'sheets_analysis': {}
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}
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# Analyze each sheet
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for sheet_name in excel_file.sheet_names:
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df = pd.read_excel(file_path, sheet_name=sheet_name)
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sheet_info = {
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'dimensions': df.shape,
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'columns': list(df.columns),
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'column_count': len(df.columns),
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'row_count': len(df),
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'data_types': df.dtypes.to_dict(),
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'missing_values': df.isnull().sum().to_dict(),
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'sample_data': df.head(3).to_dict('records') if not df.empty else []
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}
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analysis['sheets_analysis'][sheet_name] = sheet_info
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return analysis
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except Exception as e:
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return f"Error analyzing file: {str(e)}"
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def print_analysis_report(analysis):
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"""
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Print a formatted report of the Excel file analysis.
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"""
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if isinstance(analysis, str):
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print(analysis)
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return
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print("=" * 60)
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print("EXCEL FILE STRUCTURE ANALYSIS")
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print("=" * 60)
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print(f"File: {analysis['file_path']}")
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print(f"Size: {analysis['file_size']:,} bytes")
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print(f"Total Sheets: {analysis['total_sheets']}")
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print(f"Sheet Names: {', '.join(analysis['sheet_names'])}")
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print()
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for sheet_name, sheet_info in analysis['sheets_analysis'].items():
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print(f"--- SHEET: {sheet_name} ---")
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print(f"Dimensions: {sheet_info['dimensions'][0]} rows × {sheet_info['dimensions'][1]} columns")
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print(f"Columns: {', '.join(sheet_info['columns'])}")
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print()
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print("Data Types:")
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for col, dtype in sheet_info['data_types'].items():
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print(f" {col}: {dtype}")
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print()
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print("Missing Values:")
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for col, missing in sheet_info['missing_values'].items():
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if missing > 0:
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print(f" {col}: {missing} missing values")
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print()
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if sheet_info['sample_data']:
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print("Sample Data (first 3 rows):")
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for i, row in enumerate(sheet_info['sample_data'], 1):
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print(f" Row {i}: {row}")
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print()
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if __name__ == "__main__":
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# Analyze the sample Excel file
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file_path = "data/sample-data.xlsx"
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print("Starting Excel file analysis...")
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analysis = analyze_excel_structure(file_path)
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print_analysis_report(analysis)
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