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v0.2.1 - Enhanced SinfoParser

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@NarenKarthikBM NarenKarthikBM released this 10 Dec 11:47
V0.2.1
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🎉 Release v0.2.1 - Enhanced SinfoParser

This release significantly enhances the SinfoParser to provide comprehensive parsing of all CDO sinfo output sections, making it easier to programmatically access climate data metadata.

✨ New Features

Complete Sinfo Output Parsing

  • Metadata Extraction: Parse file format, institute, source, and variable field headers
  • Grid Coordinates: Full grid information with automatic spatial resolution calculation
    • Extracts grid type, dimensions, and coordinate ranges
    • Automatically calculates lon_resolution and lat_resolution (e.g., 0.25 degrees)
  • Vertical Coordinates: Parse vertical axis information (surface, pressure, hybrid levels)
  • Time Coordinates: Comprehensive temporal data extraction
    • Total timesteps, reference time, units, and calendar
    • Complete list of all timestep values
    • Automatic temporal resolution calculation (detects hourly, 6-hourly, daily, monthly intervals)
    • Handles both regular and irregular time series

Enhanced Variable Parsing

  • Support for both modern sinfo format (Institut/Source/Steptype) and legacy format (Date/Time)
  • Robust type conversion for numeric fields
  • Graceful handling of malformed data

📊 Example Usage

from python_cdo_wrapper import CDO, parse_cdo_output

cdo = CDO()
output = cdo("sinfo", input="data.nc")
parsed = parse_cdo_output("sinfo", output)

# Access grid resolution
print(parsed["grid"]["lon_resolution"])  # 0.25
print(parsed["grid"]["lat_resolution"])  # 0.25

# Access time resolution
print(parsed["time"]["time_resolution"]["interval"])  # "1 day"
print(parsed["time"]["time_resolution"]["regular"])   # True

# Access all timesteps
print(parsed["time"]["timesteps"][:5])  # First 5 timesteps

🔧 Improvements

  • Added 12 comprehensive test cases for sinfo parsing
  • Improved parser robustness and error handling
  • Better documentation with detailed docstrings

Backward Compatibility

Fully backward compatible - all existing code continues to work without changes.

Installation

pip install --upgrade python-cdo-wrapper

Full Changelog: V0.2.0...V0.2.1

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