# How should I present long string literals (URLs) in Python?

I have a web scraping application that contains long string literals for the URLs. What would be the best way to present them (keeping in mind that I would like to adhere to PEP-8.

URL = "https://www.targetwebsite.co.foo/bar-app/abc/hello/world/AndThen?whatever=123&this=456&theother=789&youget=the_idea"
br = mechanize.Browser()
br.open(URL)


I had thought to do this:

URL_BASE = "https://www.targetwebsite.co.foo/"
URL_SUFFIX = "bar-app/abc/hello/world/AndThen"
URL_ARGUMENTS = "?whatever=123&this=456&theother=789&youget=the_idea"
br = mechanize.Browser()
br.open(URL_BASE + URL_SUFFIX + URL_ARGUMENTS)


But so many lines la! Also, not a standard way of representing a URL.

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You could use continuation lines with \, but it messes the indentation:

URL = 'https://www.targetwebsite.co.foo/\
bar-app/abc/hello/world/AndThen\
?whatever=123&this=456&theother=789&youget=the_idea'


Or you could use the fact that string literals next to each other are automatically concatenated, in either of these two forms:

URL = ('https://www.targetwebsite.co.foo/'
'bar-app/abc/hello/world/AndThen'
'?whatever=123&this=456&theother=789&youget=the_idea')

URL = 'https://www.targetwebsite.co.foo/' \
'bar-app/abc/hello/world/AndThen' \
'?whatever=123&this=456&theother=789&youget=the_idea'


I often use the parenthesized version, but the backslashed one probably looks cleaner.

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