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Replace deprecated os.popen() call with Python's built-in file handling #865

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Replace deprecated os.popen() call with Python's built-in file handling #865

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9 changes: 6 additions & 3 deletions src/seedsigner/views/tools_views.py
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Original file line number Diff line number Diff line change
Expand Up @@ -148,9 +148,12 @@ def run(self):

# Build in some hardware-level uniqueness via CPU unique Serial num
try:
stream = os.popen("cat /proc/cpuinfo | grep Serial")
output = stream.read()
serial_num = output.split(":")[-1].strip().encode('utf-8')
serial_num = b''
with open("/proc/cpuinfo", "r") as f:
for line in f:
if "Serial" in line:
serial_num = line.split(":")[-1].strip().encode('utf-8')
break
serial_hash = hashlib.sha256(serial_num)
hash_bytes = serial_hash.digest()
except Exception as e:
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