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Use context manager to open and close nc file #88

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merged 2 commits into from
Nov 3, 2024
Merged

Use context manager to open and close nc file #88

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9df8d4b
Use context manager to open and close nc file
chrowe Oct 31, 2024
ca22dde
Load data from file before releasing from context
chrowe Nov 1, 2024
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11 changes: 5 additions & 6 deletions city_metrix/layers/era_5_hottest_day.py
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Original file line number Diff line number Diff line change
Expand Up @@ -96,12 +96,11 @@ def hourly_mean_temperature(image):
},
f'download_{i}.nc')

dataarray = xr.open_dataset(f'download_{i}.nc')

# Subset times for the day
times = [valid_time.astype('datetime64[s]').astype(datetime).replace(tzinfo=pytz.UTC) for valid_time in dataarray['valid_time'].values]
indices = [i for i, value in enumerate(times) if value in utc_times]
subset_dataarray = dataarray.isel(valid_time=indices)
with xr.open_dataset(f'download_{i}.nc') as dataarray:
# Subset times for the day
times = [valid_time.astype('datetime64[s]').astype(datetime).replace(tzinfo=pytz.UTC) for valid_time in dataarray['valid_time'].values]
indices = [i for i, value in enumerate(times) if value in utc_times]
subset_dataarray = dataarray.isel(valid_time=indices).load()

dataarray_list.append(subset_dataarray)

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