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Add CSV and JSON export utilities for PSLab sensor data #260

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Add CSV and JSON export utilities for PSLab sensor data #260

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Add CSV and JSON export utilities with basic tests
saadiqbal09 Dec 25, 2025
75d55b7
Add CSV and JSON export utilities with basic tests
saadiqbal09 Dec 25, 2025
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19 changes: 19 additions & 0 deletions pslab/utils/data_export.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,19 @@
import csv
import json

def export_to_csv(data, filename):
"""
data: list of dictionaries
"""
if not data:
return

with open(filename, "w", newline="") as f:
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writer = csv.DictWriter(f, fieldnames=data[0].keys())
writer.writeheader()
writer.writerows(data)

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Copilot AI Feb 8, 2026

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Both exporters raise on empty data, which prevents writing a valid empty JSON array/object and also prevents writing a header-only CSV when fieldnames is provided. Consider allowing empty iterables (and for CSV, requiring/providing fieldnames when data is empty) so exports can represent “no samples yet” cases.

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def export_to_json(data, filename):
with open(filename, "w") as f:
json.dump(data, f, indent=4)