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tessl
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Describes
pypipkg:pypi/fiona@1.10.x

evals

scenario-2

rubric.jsontask.md
tile.json

tessl/pypi-fiona

tessl install tessl/pypi-fiona@1.10.0

Fiona reads and writes spatial data files

Agent Success

Agent success rate when using this tile

88%

Improvement

Agent success rate improvement when using this tile compared to baseline

1.1x

Baseline

Agent success rate without this tile

80%

task.mdevals/scenario-2/

GIS Feature Counter

Build a tool that counts features and calculates property statistics from GIS vector data files using memory-efficient iteration.

Capabilities

Count features efficiently

  • Given a shapefile with 100 point features, the counter returns the correct total count of 100 @test
  • Given an empty GIS file, the counter returns a count of 0 @test

Calculate property statistics

  • Given a GIS file where features have a numeric "population" property, the counter calculates the sum of all population values @test
  • Given a GIS file with features containing a "temperature" property, the counter finds the maximum temperature value @test

Implementation

@generates

API

def count_features(filepath: str) -> int:
    """
    Count the total number of features in a GIS file.

    Args:
        filepath: Path to the GIS vector data file

    Returns:
        Total number of features
    """
    pass

def calculate_property_sum(filepath: str, property_name: str) -> float:
    """
    Calculate the sum of a numeric property across all features.

    Args:
        filepath: Path to the GIS vector data file
        property_name: Name of the numeric property to sum

    Returns:
        Sum of the property values
    """
    pass

def find_property_max(filepath: str, property_name: str) -> float:
    """
    Find the maximum value of a numeric property across all features.

    Args:
        filepath: Path to the GIS vector data file
        property_name: Name of the numeric property

    Returns:
        Maximum value of the property
    """
    pass

Dependencies { .dependencies }

fiona { .dependency }

Provides GIS vector data reading capabilities with efficient iteration support.