source
stringclasses
1 value
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stringclasses
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stringclasses
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stringclasses
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cpython
cfcd524
difflib
SequenceMatcher.set_seqs
>>> s = SequenceMatcher()
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cpython
cfcd524
difflib
SequenceMatcher.set_seqs
>>> s.set_seqs("abcd", "bcde")
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cpython
cfcd524
difflib
SequenceMatcher.set_seqs
>>> s.ratio()
0.75
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cpython
cfcd524
difflib
SequenceMatcher.set_seq1
>>> s = SequenceMatcher(None, "abcd", "bcde")
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cpython
cfcd524
difflib
SequenceMatcher.set_seq1
>>> s.ratio()
0.75
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cpython
cfcd524
difflib
SequenceMatcher.set_seq1
>>> s.set_seq1("bcde")
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cpython
cfcd524
difflib
SequenceMatcher.set_seq1
>>> s.ratio()
1.0
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cpython
cfcd524
difflib
SequenceMatcher.set_seq1
>>>
SequenceMatcher computes and caches detailed information about the second sequence, so if you want to compare one sequence S against many sequences, use .set_seq2(S) once and call .set_seq1(x) repeatedly for each of the other sequences. See also set_seqs() and set_seq2().
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cpython
cfcd524
difflib
SequenceMatcher.set_seq2
>>> s = SequenceMatcher(None, "abcd", "bcde")
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cpython
cfcd524
difflib
SequenceMatcher.set_seq2
>>> s.ratio()
0.75
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cpython
cfcd524
difflib
SequenceMatcher.set_seq2
>>> s.set_seq2("abcd")
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cpython
cfcd524
difflib
SequenceMatcher.set_seq2
>>> s.ratio()
1.0
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cpython
cfcd524
difflib
SequenceMatcher.set_seq2
>>>
SequenceMatcher computes and caches detailed information about the second sequence, so if you want to compare one sequence S against many sequences, use .set_seq2(S) once and call .set_seq1(x) repeatedly for each of the other sequences. See also set_seqs() and set_seq1().
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cpython
cfcd524
difflib
SequenceMatcher.find_longest_match
>>> s = SequenceMatcher(None, " abcd", "abcd abcd")
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cpython
cfcd524
difflib
SequenceMatcher.find_longest_match
>>> s.find_longest_match(0, 5, 0, 9)
Match(a=0, b=4, size=5) If isjunk is defined, first the longest matching block is determined as above, but with the additional restriction that no junk element appears in the block. Then that block is extended as far as possible by matching (only) junk elements on both sides. So the resulting block never matches on junk except as identical junk happens to be adjacent to an "interesting" match. Here's the same example as before, but considering blanks to be junk. That prevents " abcd" from matching the " abcd" at the tail end of the second sequence directly. Instead only the "abcd" can match, and matches the leftmost "abcd" in the second sequence:
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cpython
cfcd524
difflib
SequenceMatcher.find_longest_match
>>> s = SequenceMatcher(lambda x: x==" ", " abcd", "abcd abcd")
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cpython
cfcd524
difflib
SequenceMatcher.find_longest_match
>>> s.find_longest_match(0, 5, 0, 9)
Match(a=1, b=0, size=4) If no blocks match, return (alo, blo, 0).
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cpython
cfcd524
difflib
SequenceMatcher.find_longest_match
>>> s = SequenceMatcher(None, "ab", "c")
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cpython
cfcd524
difflib
SequenceMatcher.find_longest_match
>>> s.find_longest_match(0, 2, 0, 1)
Match(a=0, b=0, size=0)
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cpython
cfcd524
difflib
SequenceMatcher.get_matching_blocks
>>> s = SequenceMatcher(None, "abxcd", "abcd")
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cpython
cfcd524
difflib
SequenceMatcher.get_matching_blocks
>>> list(s.get_matching_blocks())
[Match(a=0, b=0, size=2), Match(a=3, b=2, size=2), Match(a=5, b=4, size=0)]
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cpython
cfcd524
difflib
SequenceMatcher.get_opcodes
>>> a = "qabxcd"
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cpython
cfcd524
difflib
SequenceMatcher.get_opcodes
>>> b = "abycdf"
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cpython
cfcd524
difflib
SequenceMatcher.get_opcodes
>>> s = SequenceMatcher(None, a, b)
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cpython
cfcd524
difflib
SequenceMatcher.get_opcodes
>>> 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)
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cpython
cfcd524
difflib
SequenceMatcher.get_grouped_opcodes
>>> from pprint import pprint
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cpython
cfcd524
difflib
SequenceMatcher.get_grouped_opcodes
>>> a = list(map(str, range(1,40)))
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cpython
cfcd524
difflib
SequenceMatcher.get_grouped_opcodes
>>> b = a[:]
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cpython
cfcd524
difflib
SequenceMatcher.get_grouped_opcodes
>>> b[8:8] = ['i'] # Make an insertion
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cpython
cfcd524
difflib
SequenceMatcher.get_grouped_opcodes
>>> b[20] += 'x' # Make a replacement
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cpython
cfcd524
difflib
SequenceMatcher.get_grouped_opcodes
>>> b[23:28] = [] # Make a deletion
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cpython
cfcd524
difflib
SequenceMatcher.get_grouped_opcodes
>>> b[30] += 'y' # Make another replacement
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cpython
cfcd524
difflib
SequenceMatcher.get_grouped_opcodes
>>> pprint(list(SequenceMatcher(None,a,b).get_grouped_opcodes()))
[[('equal', 5, 8, 5, 8), ('insert', 8, 8, 8, 9), ('equal', 8, 11, 9, 12)], [('equal', 16, 19, 17, 20), ('replace', 19, 20, 20, 21), ('equal', 20, 22, 21, 23), ('delete', 22, 27, 23, 23), ('equal', 27, 30, 23, 26)], [('equal', 31, 34, 27, 30), ('replace', 34, 35, 30, 31), ('equal', 35, 38, 31, 34)]]
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cpython
cfcd524
difflib
SequenceMatcher.ratio
>>> s = SequenceMatcher(None, "abcd", "bcde")
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cpython
cfcd524
difflib
SequenceMatcher.ratio
>>> s.ratio()
0.75
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cpython
cfcd524
difflib
SequenceMatcher.ratio
>>> s.quick_ratio()
0.75
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cpython
cfcd524
difflib
SequenceMatcher.ratio
>>> s.real_quick_ratio()
1.0
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cpython
cfcd524
difflib
SequenceMatcher.get_close_matches
>>> get_close_matches("appel", ["ape", "apple", "peach", "puppy"])
['apple', 'ape']
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cpython
cfcd524
difflib
SequenceMatcher.get_close_matches
>>> import keyword as _keyword
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cpython
cfcd524
difflib
SequenceMatcher.get_close_matches
>>> get_close_matches("wheel", _keyword.kwlist)
['while']
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cpython
cfcd524
difflib
SequenceMatcher.get_close_matches
>>> get_close_matches("Apple", _keyword.kwlist)
[]
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cpython
cfcd524
difflib
SequenceMatcher.get_close_matches
>>> get_close_matches("accept", _keyword.kwlist)
['except']
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cpython
cfcd524
difflib
Differ
>>> text1 = ''' 1. Beautiful is better than ugly. ... 2. Explicit is better than implicit. ... 3. Simple is better than complex. ... 4. Complex is better than complicated. ... '''.splitlines(keepends=True)
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cpython
cfcd524
difflib
Differ
>>> len(text1)
4
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cpython
cfcd524
difflib
Differ
>>> text1[0][-1]
'\n'
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cpython
cfcd524
difflib
Differ
>>> text2 = ''' 1. Beautiful is better than ugly. ... 3. Simple is better than complex. ... 4. Complicated is better than complex. ... 5. Flat is better than nested. ... '''.splitlines(keepends=True)
Next we instantiate a Differ object:
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cpython
cfcd524
difflib
Differ
>>> d = Differ()
Note that when instantiating a Differ object we may pass functions to filter out line and character 'junk'. See Differ.__init__ for details. Finally, we compare the two:
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cpython
cfcd524
difflib
Differ
>>> result = list(d.compare(text1, text2))
'result' is a list of strings, so let's pretty-print it:
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cpython
cfcd524
difflib
Differ
>>> from pprint import pprint as _pprint
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cpython
cfcd524
difflib
Differ
>>> _pprint(result)
[' 1. Beautiful is better than ugly.\n', '- 2. Explicit is better than implicit.\n', '- 3. Simple is better than complex.\n', '+ 3. Simple is better than complex.\n', '? ++\n', '- 4. Complex is better than complicated.\n', '? ^ ---- ^\n', '+ 4. Complicated is better than complex.\n', '? ++++ ^ ^\n', '+ 5. Flat is better than nested.\n'] As a single multi-line string it looks like this:
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cpython
cfcd524
difflib
Differ
>>> print(''.join(result), end="")
1. Beautiful is better than ugly. - 2. Explicit is better than implicit. - 3. Simple is better than complex. + 3. Simple is better than complex. ? ++ - 4. Complex is better than complicated. ? ^ ---- ^ + 4. Complicated is better than complex. ? ++++ ^ ^ + 5. Flat is better than nested.
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cpython
cfcd524
difflib
Differ.compare
>>> print(''.join(Differ().compare('one\ntwo\nthree\n'.splitlines(True), ... 'ore\ntree\nemu\n'.splitlines(True))), ... end="")
- one ? ^ + ore ? ^ - two - three ? - + tree + emu
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cpython
cfcd524
difflib
Differ._fancy_replace
>>> d = Differ()
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cpython
cfcd524
difflib
Differ._fancy_replace
>>> results = d._fancy_replace(['abcDefghiJkl\n'], 0, 1, ... ['abcdefGhijkl\n'], 0, 1)
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cpython
cfcd524
difflib
Differ._fancy_replace
>>> print(''.join(results), end="")
- abcDefghiJkl ? ^ ^ ^ + abcdefGhijkl ? ^ ^ ^
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cpython
cfcd524
difflib
Differ._qformat
>>> d = Differ()
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cpython
cfcd524
difflib
Differ._qformat
>>> results = d._qformat('\tabcDefghiJkl\n', '\tabcdefGhijkl\n', ... ' ^ ^ ^ ', ' ^ ^ ^ ')
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cpython
cfcd524
difflib
Differ._qformat
>>> for line in results: print(repr(line)) ...
'- \tabcDefghiJkl\n' '? \t ^ ^ ^\n' '+ \tabcdefGhijkl\n' '? \t ^ ^ ^\n'
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cpython
cfcd524
difflib
Differ.IS_LINE_JUNK
>>> IS_LINE_JUNK('\n')
True
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cpython
cfcd524
difflib
Differ.IS_LINE_JUNK
>>> IS_LINE_JUNK(' # \n')
True
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cpython
cfcd524
difflib
Differ.IS_LINE_JUNK
>>> IS_LINE_JUNK('hello\n')
False
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cpython
cfcd524
difflib
Differ.IS_CHARACTER_JUNK
>>> IS_CHARACTER_JUNK(' ')
True
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cpython
cfcd524
difflib
Differ.IS_CHARACTER_JUNK
>>> IS_CHARACTER_JUNK('\t')
True
null
cpython
cfcd524
difflib
Differ.IS_CHARACTER_JUNK
>>> IS_CHARACTER_JUNK('\n')
False
null
cpython
cfcd524
difflib
Differ.IS_CHARACTER_JUNK
>>> IS_CHARACTER_JUNK('x')
False
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cpython
cfcd524
difflib
Differ.unified_diff
>>> for line in unified_diff('one two three four'.split(), ... 'zero one tree four'.split(), 'Original', 'Current', ... '2005-01-26 23:30:50', '2010-04-02 10:20:52', ... lineterm=''): ... print(line) # doctest: +NORMALIZE_WHITESPACE
--- Original 2005-01-26 23:30:50 +++ Current 2010-04-02 10:20:52 @@ -1,4 +1,4 @@ +zero one -two -three +tree four
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cpython
cfcd524
difflib
Differ.context_diff
>>> print(''.join(context_diff('one\ntwo\nthree\nfour\n'.splitlines(True), ... 'zero\none\ntree\nfour\n'.splitlines(True), 'Original', 'Current')), ... end="")
*** Original --- Current *************** *** 1,4 **** one ! two ! three four --- 1,4 ---- + zero one ! tree four
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cpython
cfcd524
difflib
Differ.ndiff
>>> diff = ndiff('one\ntwo\nthree\n'.splitlines(keepends=True), ... 'ore\ntree\nemu\n'.splitlines(keepends=True))
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cpython
cfcd524
difflib
Differ.ndiff
>>> print(''.join(diff), end="")
- one ? ^ + ore ? ^ - two - three ? - + tree + emu
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cpython
cfcd524
difflib
HtmlDiff.restore
>>> diff = ndiff('one\ntwo\nthree\n'.splitlines(keepends=True), ... 'ore\ntree\nemu\n'.splitlines(keepends=True))
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cpython
cfcd524
difflib
HtmlDiff.restore
>>> diff = list(diff)
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cpython
cfcd524
difflib
HtmlDiff.restore
>>> print(''.join(restore(diff, 1)), end="")
one two three
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cpython
cfcd524
difflib
HtmlDiff.restore
>>> print(''.join(restore(diff, 2)), end="")
ore tree emu
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