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| author | Raymond Hettinger <python@rcn.com> | 2011-04-10 02:41:31 (GMT) |
|---|---|---|
| committer | Raymond Hettinger <python@rcn.com> | 2011-04-10 02:41:31 (GMT) |
| commit | 1929983518098d7bc370bd7ecb524626d6bd4a66 (patch) | |
| tree | 0c89ce7f7a7f663b804501b5c2fc3eccc479570f /Doc/library/difflib.rst | |
| parent | 4e6aba6f6352acd0f40a7677c678afa4079a85ba (diff) | |
| parent | dbb677a894b2d9da3945f7e3c0fdf850ea1bd3f1 (diff) | |
| download | cpython-1929983518098d7bc370bd7ecb524626d6bd4a66.zip cpython-1929983518098d7bc370bd7ecb524626d6bd4a66.tar.gz cpython-1929983518098d7bc370bd7ecb524626d6bd4a66.tar.bz2 | |
Beautify and modernize the SequenceMatcher example
Diffstat (limited to 'Doc/library/difflib.rst')
| -rw-r--r-- | Doc/library/difflib.rst | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/Doc/library/difflib.rst b/Doc/library/difflib.rst index 505d308..836e240 100644 --- a/Doc/library/difflib.rst +++ b/Doc/library/difflib.rst @@ -483,13 +483,15 @@ The :class:`SequenceMatcher` class has this constructor: >>> b = "abycdf" >>> s = SequenceMatcher(None, a, b) >>> for tag, i1, i2, j1, j2 in s.get_opcodes(): - ... print(("%7s a[%d:%d] (%s) b[%d:%d] (%s)" % - ... (tag, i1, i2, a[i1:i2], j1, j2, b[j1:j2]))) - delete a[0:1] (q) b[0:0] () - equal a[1:3] (ab) b[0:2] (ab) - replace a[3:4] (x) b[2:3] (y) - equal a[4:6] (cd) b[3:5] (cd) - insert a[6:6] () b[5:6] (f) + print('{:7} a[{}:{}] --> b[{}:{}] {!r:>8} --> {!r}'.format( + tag, i1, i2, j1, j2, a[i1:i2], b[j1:j2])) + + + delete a[0:1] --> b[0:0] 'q' --> '' + equal a[1:3] --> b[0:2] 'ab' --> 'ab' + replace a[3:4] --> b[2:3] 'x' --> 'y' + equal a[4:6] --> b[3:5] 'cd' --> 'cd' + insert a[6:6] --> b[5:6] '' --> 'f' .. method:: get_grouped_opcodes(n=3) |