[英]How to easily write a multi-line file with variables (python 2.6)?
目前我正在編寫一個python程序中的多行文件
myfile = open('out.txt','w')
myfile.write('1st header line\nSecond header line\n')
myfile.write('There are {0:5.2f} people in {1} rooms\n'.format(npeople,nrooms))
myfile.write('and the {2} is {3}\n'.format('ratio','large'))
myfile.close()
這有點令人厭倦,並且會受到輸入錯誤的影響。 我希望能做的就像是
myfile = open('out.txt','w')
myfile.write(
1st header line
Second header line
There are {npeople} people in {nrooms} rooms
and the {'ratio'} is {'large'}'
myfile.close()
有沒有辦法在python中做這樣的事情? 一個技巧可能是將其寫入文件然后使用sed目標替換,但有更簡單的方法嗎?
三引號字符串是你的朋友:
template = """1st header line
second header line
There are {npeople:5.2f} people in {nrooms} rooms
and the {ratio} is {large}
"""
context = {
"npeople":npeople,
"nrooms":nrooms,
"ratio": ratio,
"large" : large
}
with open('out.txt','w') as myfile:
myfile.write(template.format(**context))
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