[Python] .app made using PyInstaller closes straight away?

I have attempted to convert my python program into a .app using PyInstaller. The actual code runs fine through IDLE, but everytime I try and run the newly converted .app, it closes straight away. Below is my .spec file and my .py file. I have edited the .spec file, adding in the text file I import in my .py file.

PYTHON FILE:


#CENTRALCOAST: 2250-2420
#CENTRALCOAST2: 2250-2267
#NORTHERNBEACHES: 2084-2108
CentralCoast = []
NorthernBeaches = []
OOR = []
Invalid = []
import math
def numLen(num):
return len(str(abs(num)))

with open('postcodes.txt') as input_file:
long_list = [line.strip() for line in input_file]
for i in range(len(long_list)):
long_list = int(long_list)
for each in long_list:
if 2084 <= each <= 2108: #NorthernBeaches
NorthernBeaches.extend([each])
for each in long_list:
if 2250 <= each <= 2267: #CentralCoast
CentralCoast.extend([each])
for each in long_list:
if not 2250 <= each <= 2267:
OOR.extend([each])
#for each in long_list:
# if numLen(each) != 4:
# Invalid.extend([each])

Total = len(CentralCoast) + len(OOR) + len(NorthernBeaches) + len(Invalid)

print("Central Coast:", len(CentralCoast), "------", round(len(CentralCoast)/Total,2), "%")
print("")
print("Northern Beaches:", len(NorthernBeaches), "------", round(len(NorthernBeaches)/Total,4), "%")
print("")
print("Out of Range:", len(OOR), "------", round(len(OOR)/Total,2), "%")
print("")
#i = 0
#for i in OOR:
# print(i)
# i = i + 1
print("Invalid Entry:", len(Invalid), "------", round(len(Invalid)/Total,4), "%")
print("")
print("")
print("Total:", Total)
exit = input("")

SPEC FILE:


# -*- mode: python -*-

block_cipher = None


a = Analysis(['algorithmPOSTCODE.py'],
pathex=['/Users/CooperTimewell'],
binaries=[],
datas=[('postcodes.txt', '.')],
hiddenimports=[],
hookspath=[],
runtime_hooks=[],
excludes=[],
win_no_prefer_redirects=False,
win_private_assemblies=False,
cipher=block_cipher)
pyz = PYZ(a.pure, a.zipped_data,
cipher=block_cipher)
exe = EXE(pyz,
a.scripts,
exclude_binaries=True,
name='algorithmPOSTCODE',
debug=False,
strip=False,
upx=True,
console=False )
coll = COLLECT(exe,
a.binaries,
a.zipfiles,
a.datas,
strip=False,
upx=True,
name='algorithmPOSTCODE')
app = BUNDLE(coll,
name='algorithmPOSTCODE.app',
icon=None,
bundle_identifier=None)

How do I stop it from closing straight away? Thankyou.

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