Python-сообщество

 from __future__ import print_function
import io
baseExport1 = open("/home/aprokurov/export.txt",'w')
mail = u'@'
with io.open('/home/aprokurov/base.doc', encoding='utf-8') as file:
    for line in file:
        if mail in line:
            print(line)
            baseExport1.write(line)
            baseExport2 = open("/home/aprokurov/export.txt",'w')
num1 = u'+7'
with io.open('/home/aprokurov/base.doc', encoding='utf-8') as file:
    for line in file:
        if num1 in line:
            print(line)
    baseExport2.write(line)
baseExport3 = open("/home/aprokurov/export.txt",'w')
num2 = u'+3'    
with io.open('/home/aprokurov/base.doc', encoding='utf-8') as file:
    for line in file:
        if num2 in line:
            print(line)
baseExport3.write(line)      
baseExport3.close()     
baseExport1.close()
baseExport2.close()