Problem with character sets

[snippsat]

file = open(path + 'page1', 'w')

You have to set encoding like i did in my post,and use with open then no need to use close()

file = open(path + 'page1', 'w', encoding='utf-8')

I also think, Python saves as UTF-8 by default

No this can fail in many ways depend on environment(editor/Treminal,ect..) or OS,
so set always encoding especially if you get wrong result.

How should I actually save line??

Should maybe not needed if do set encoding as shown over.
Basic stuff you use a variable,then eg save/read as i show in my post

data = '»Æ¹ûÊ÷'
text_ch = data.encode('latin1').decode('gb2312')