5

I see you guys using

url = '"%s"' % url # This part >>> url = "http://www.site.com/info.xx" >>> print url http://www.site.com/info.xx >>> url = '"%s"' % url >>> print url "http://www.site.com/info.xx"

Is it advanced Python? Is there a tutorial for it? How can I learn about it?

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2
  • 5
    You've marked both questions as duplicates. Surely you'd mark only the latter (chronologically) Commented Dec 30, 2012 at 6:35
  • No, it's like twins. Both should be destroyed. Commented Jul 23, 2013 at 16:14

3 Answers 3

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17

It's common string formatting, and very useful. It's analogous to C-style printf formatting. See String Formatting Operations in the Python.org docs. You can use multiple arguments like this:

"%3d\t%s" % (42, "the answer to ...")
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The real answer is 43 but don't tell anyone.
@Janusz Lenar blasphemy, I will not flag you this time but big brother is keeping an eye on you now.
Url is broken => Correct Url docs.python.org/3/library/string.html#formatstrings
8

That line of code is using Python string formatting. You can read up more on how to use it here: http://docs.python.org/library/stdtypes.html#string-formatting

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0

It is not advanced, you can use ' or " to define a string.

Check the documentation.

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