Python-сообщество

from itertools import takewhile
start = 'tran = 20664906'
stop = 'ltime_exe = 74049'
with open('new  2.txt', 'rb') as fin, \
     open('output_new2.txt', 'w') as fout:
         for line in fin:
             if start in line:
                 fout.write('tran\n')
                 fout.write('{\n')
                 for line in takewhile(lambda x: stop not in x, fin):
                     fout.write(line)
                 fout.write('   }\n')
                 fout.write('}\n')

> "Python " temp.py
  File "temp.py", line 12
    fout.write('{\n')
    ^
IndentationError: unexpected indent

p3 = open( p2[0], 'r').readlines()
a = named_params['fntran']
p4 = p3.index ('   tran = '+a+'\n')
with open (a+ '_' + named_params['fnschet']+'.txt','w',encoding= 'utf-8') as fi:
    print (''.join (p3[p4-2 : p4+94]) , file=fi)

num_tran = '20664906'
with open('new  2.txt', 'rb') as fin, \
     open('output_new2.txt', 'w') as fout:
         for line in fin:
             if num_tran in line:
                 fout.write('tran\n')
                 fout.write('{\n')
                 while 'ltime_exe = 74049' not in line :
                     fout.write(line)
                     line = next(fin)
                 fout.write('   }\n')
                 fout.write('}\n')