Author serhiy.storchaka
Recipients barry, jader.fabiano, r.david.murray, rhettinger, serhiy.storchaka, tshepang
Date 2014-08-03.18:28:13
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Message-id <1407090493.35.0.0869819073585.issue21448@psf.upfronthosting.co.za>
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Yes, but if n is limited, O(n) becomes O(1). In our case n is the number of fed but not read lines. I suppose the worst case is a number of empty lines, in this case n=8192. I tried following microbenchmark and did not noticed significant difference.

$ ./python -m timeit -s "from email.parser import Parser; d = 'From: example@example.com\n\n' + '\n' * 100000" -- "Parser().parsestr(d)"
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Date User Action Args
2014-08-03 18:28:13serhiy.storchakasetrecipients: + serhiy.storchaka, barry, rhettinger, r.david.murray, tshepang, jader.fabiano
2014-08-03 18:28:13serhiy.storchakasetmessageid: <1407090493.35.0.0869819073585.issue21448@psf.upfronthosting.co.za>
2014-08-03 18:28:13serhiy.storchakalinkissue21448 messages
2014-08-03 18:28:13serhiy.storchakacreate