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问题：Python TypeError：格式字符串的参数不足
回答 0
回答 1
回答 2

问题：Python TypeError：格式字符串的参数不足

这是输出。我相信这些是utf-8字符串…其中一些可以是NoneType，但是在类似这样的字符串之前会立即失败…

instr = "'%s', '%s', '%d', '%s', '%s', '%s', '%s'" % softname, procversion, int(percent), exe, description, company, procurl

TypeError：格式字符串的参数不足

虽然是7比7？

点击查看英文原文

Here’s the output. These are utf-8 strings I believe… some of these can be NoneType but it fails immediately, before ones like that…

instr = "'%s', '%s', '%d', '%s', '%s', '%s', '%s'" % softname, procversion, int(percent), exe, description, company, procurl

TypeError: not enough arguments for format string

Its 7 for 7 though?

回答 0

请注意，%格式化字符串的语法已过时。如果您的Python版本支持它，则应编写：

instr = "'{0}', '{1}', '{2}', '{3}', '{4}', '{5}', '{6}'".format(softname, procversion, int(percent), exe, description, company, procurl)

这也可以修复您碰巧遇到的错误。

点击查看英文原文

Note that the % syntax for formatting strings is becoming outdated. If your version of Python supports it, you should write:

instr = "'{0}', '{1}', '{2}', '{3}', '{4}', '{5}', '{6}'".format(softname, procversion, int(percent), exe, description, company, procurl)

This also fixes the error that you happened to have.

回答 1

您需要将格式参数放入元组（添加括号）：

instr = "'%s', '%s', '%d', '%s', '%s', '%s', '%s'" % (softname, procversion, int(percent), exe, description, company, procurl)

您当前拥有的等同于以下内容：

intstr = ("'%s', '%s', '%d', '%s', '%s', '%s', '%s'" % softname), procversion, int(percent), exe, description, company, procurl

例：

>>> "%s %s" % 'hello', 'world'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: not enough arguments for format string
>>> "%s %s" % ('hello', 'world')
'hello world'
点击查看英文原文

You need to put the format arguments into a tuple (add parentheses):

instr = "'%s', '%s', '%d', '%s', '%s', '%s', '%s'" % (softname, procversion, int(percent), exe, description, company, procurl)

What you currently have is equivalent to the following:

intstr = ("'%s', '%s', '%d', '%s', '%s', '%s', '%s'" % softname), procversion, int(percent), exe, description, company, procurl

Example:

>>> "%s %s" % 'hello', 'world'
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: not enough arguments for format string
>>> "%s %s" % ('hello', 'world')
'hello world'

回答 2

%在格式字符串中用作百分比字符时，出现了相同的错误。解决的办法是加倍%%。

点击查看英文原文

I got the same error when using % as a percent character in my format string. The solution to this is to double up the %%.

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