import os
def seach_file(dir_name,file_name):
os.chdir(dir_name)
all_files=os.listdir(os.curdir)
for each_file in all_files:
if each_file==file_name:
print(os.getcwd()+os.seq+file_name)
if os.path.isdir(each_file):
seach_file(each_file,file_name)
os.chdir(os.pardir)