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added try except on json file reading #147

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added try except on json file reading #147

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12 changes: 8 additions & 4 deletions neutronics_material_maker/utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@

import json
import warnings
from json.decoder import JSONDecodeError
from pathlib import Path
from typing import Optional

Expand Down Expand Up @@ -370,10 +371,13 @@ def AddMaterialFromFile(filename: str, verbose: Optional[bool] = True) -> None:
if verbose:
print("Added materials to library from", filename)
with open(filename, "r") as f:
new_data = json.load(f)
if verbose:
print('Added material', list(new_data.keys()))
material_dict.update(new_data)
try:
new_data = json.load(f)
if verbose:
print('Added material', list(new_data.keys()))
material_dict.update(new_data)
except JSONDecodeError:
print('JSONDecodeError, file not read in', filename)


def AvailableMaterials() -> dict:
Expand Down