[英]Why can't I write 2 variables at the same time to a file in Python
我有以下代碼:
def yaml_processor(period):
filepath_reg = "../public/log/testing.log.yaml"
data = yaml_loader(filepath)
data = data.get(period)
for team, key in data.iteritems():
file = open("test.log.yaml", 'w')
file.write('%team %period\n')
file.close()
print(team, period)
它不想將它們寫入file.write('{team}, {period}\\n')
,但是可以完美地打印值...
我在這里做錯了什么?
如果您使用的是最新版本的Python(3.6或更高版本),則可以利用f-strings :
with open("test.log.yaml", 'w') as file:
file.write(f'{team} {period}\n')
您將在循環的每次迭代中打開文件,該循環將刪除先前的值。 只需將open和close語句移出循環即可。
def yaml_processor(period):
filepath_reg = "../public/log/testing.log.yaml"
data = yaml_loader(filepath)
data = data.get(period)
file = open("test.log.yaml", 'w')
for team, key in data.iteritems():
file.write('%team %period\n')
print(team, period)
file.close()
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