Path 1: 6 calls (0.33)

→ a ['hello', 'andr\udce9'] (3) 'one' (2) ['one', 'two', 'three', 'four'] (1)

→ b ['hello', 'andr\udcc3\udca9'] (3) 'two' (2) ['zero', 'one', 'tree', 'four'] (1)

→ fromfile 'Original' (3) 'a' (2) '' (1)

→ tofile 'Current' (3) 'b' (2) '' (1)

→ fromfiledate '' (3) '2005-01-26 23:30:50' (2) '2005' (1)

→ tofiledate '' (3) '2010-04-02 10:20:52' (2) '2013' (1)

→ n 3 (6)

→ lineterm '\n' (3) '' (3)

⇇ yield '@@ -1,2 +1,2 @@\n' (3) ' hello' (3) '-andr\udce9' (3) '+andr\udcc3\udca9' (3) '@@ -1,3 +1,3 @@' (2) '+t' (2) '+w' (2) ' o' (2) '-n' (2) '-e' (2)

24 run 0 not run

1def unified_diff(a, b, fromfile='', tofile='', fromfiledate='',
2                 tofiledate='', n=3, lineterm='\n'):
3    r"""
4    Compare two sequences of lines; generate the delta as a unified diff.
5
6    Unified diffs are a compact way of showing line changes and a few
7    lines of context.  The number of context lines is set by 'n' which
8    defaults to three.
9
10    By default, the diff control lines (those with ---, +++, or @@) are
11    created with a trailing newline.  This is helpful so that inputs
12    created from file.readlines() result in diffs that are suitable for
13    file.writelines() since both the inputs and outputs have trailing
14    newlines.
15
16    For inputs that do not have trailing newlines, set the lineterm
17    argument to "" so that the output will be uniformly newline free.
18
19    The unidiff format normally has a header for filenames and modification
20    times.  Any or all of these may be specified using strings for
21    'fromfile', 'tofile', 'fromfiledate', and 'tofiledate'.
22    The modification times are normally expressed in the ISO 8601 format.
23
24    Example:
25
26    >>> for line in unified_diff('one two three four'.split(),
27    ...             'zero one tree four'.split(), 'Original', 'Current',
28    ...             '2005-01-26 23:30:50', '2010-04-02 10:20:52',
29    ...             lineterm=''):
30    ...     print(line)                 # doctest: +NORMALIZE_WHITESPACE
31    --- Original        2005-01-26 23:30:50
32    +++ Current         2010-04-02 10:20:52
33    @@ -1,4 +1,4 @@
34    +zero
35     one
36    -two
37    -three
38    +tree
39     four
40    """
41
42    _check_types(a, b, fromfile, tofile, fromfiledate, tofiledate, lineterm)
43    started = False
44    for group in SequenceMatcher(None,a,b).get_grouped_opcodes(n):
45        if not started:
46            started = True
47            fromdate = '\t{}'.format(fromfiledate) if fromfiledate else ''
48            todate = '\t{}'.format(tofiledate) if tofiledate else ''
49            yield '--- {}{}{}'.format(fromfile, fromdate, lineterm)
50            yield '+++ {}{}{}'.format(tofile, todate, lineterm)
51
52        first, last = group[0], group[-1]
53        file1_range = _format_range_unified(first[1], last[2])
54        file2_range = _format_range_unified(first[3], last[4])
55        yield '@@ -{} +{} @@{}'.format(file1_range, file2_range, lineterm)
56
57        for tag, i1, i2, j1, j2 in group:
58            if tag == 'equal':
59                for line in a[i1:i2]:
60                    yield ' ' + line
61                continue
62            if tag in {'replace', 'delete'}:
63                for line in a[i1:i2]:
64                    yield '-' + line
65            if tag in {'replace', 'insert'}:
66                for line in b[j1:j2]:
67                    yield '+' + line
            

Path 2: 5 calls (0.28)

→ a ['\udca3odz is a city in Poland.'] (4) ['foo\n'] (1)

→ b ['\udcc5\udc81odz is a city in Poland.'] (4) ['bar\n'] (1)

→ fromfile '\udcb3odz.txt' (4) 'a' (1)

→ tofile '\udcc5\udc82odz.txt' (4) 'b' (1)

→ fromfiledate '' (2) '2005-03-18' (2) '1 fév' (1)

→ tofiledate '' (2) '2005-03-19' (2) '3 fév' (1)

→ n 3 (5)

→ lineterm '\n' (3) '' (2)

⇇ yield '-\udca3odz is a city in Poland.' (4) '+\udcc5\udc81odz is a city in Poland.' (4) '@@ -1 +1 @@\n' (3) '@@ -1 +1 @@' (2) '--- \udcb3odz.txt\n' (1) '+++...

21 run 3 not run

1def unified_diff(a, b, fromfile='', tofile='', fromfiledate='',
2                 tofiledate='', n=3, lineterm='\n'):
3    r"""
4    Compare two sequences of lines; generate the delta as a unified diff.
5
6    Unified diffs are a compact way of showing line changes and a few
7    lines of context.  The number of context lines is set by 'n' which
8    defaults to three.
9
10    By default, the diff control lines (those with ---, +++, or @@) are
11    created with a trailing newline.  This is helpful so that inputs
12    created from file.readlines() result in diffs that are suitable for
13    file.writelines() since both the inputs and outputs have trailing
14    newlines.
15
16    For inputs that do not have trailing newlines, set the lineterm
17    argument to "" so that the output will be uniformly newline free.
18
19    The unidiff format normally has a header for filenames and modification
20    times.  Any or all of these may be specified using strings for
21    'fromfile', 'tofile', 'fromfiledate', and 'tofiledate'.
22    The modification times are normally expressed in the ISO 8601 format.
23
24    Example:
25
26    >>> for line in unified_diff('one two three four'.split(),
27    ...             'zero one tree four'.split(), 'Original', 'Current',
28    ...             '2005-01-26 23:30:50', '2010-04-02 10:20:52',
29    ...             lineterm=''):
30    ...     print(line)                 # doctest: +NORMALIZE_WHITESPACE
31    --- Original        2005-01-26 23:30:50
32    +++ Current         2010-04-02 10:20:52
33    @@ -1,4 +1,4 @@
34    +zero
35     one
36    -two
37    -three
38    +tree
39     four
40    """
41
42    _check_types(a, b, fromfile, tofile, fromfiledate, tofiledate, lineterm)
43    started = False
44    for group in SequenceMatcher(None,a,b).get_grouped_opcodes(n):
45        if not started:
46            started = True
47            fromdate = '\t{}'.format(fromfiledate) if fromfiledate else ''
48            todate = '\t{}'.format(tofiledate) if tofiledate else ''
49            yield '--- {}{}{}'.format(fromfile, fromdate, lineterm)
50            yield '+++ {}{}{}'.format(tofile, todate, lineterm)
51
52        first, last = group[0], group[-1]
53        file1_range = _format_range_unified(first[1], last[2])
54        file2_range = _format_range_unified(first[3], last[4])
55        yield '@@ -{} +{} @@{}'.format(file1_range, file2_range, lineterm)
56
57        for tag, i1, i2, j1, j2 in group:
58            if tag == 'equal':
59                for line in a[i1:i2]:
60                    yield ' ' + line
61                continue
62            if tag in {'replace', 'delete'}:
63                for line in a[i1:i2]:
64                    yield '-' + line
65            if tag in {'replace', 'insert'}:
66                for line in b[j1:j2]:
67                    yield '+' + line
            

Path 3: 4 calls (0.22)

→ a ['hello', 'andr\udce9'] (3) [] (1)

→ b ['hello', 'andr\udce9'] (3) [] (1)

→ fromfile '' (2) 'a' (2)

→ tofile '' (2) 'a' (2)

→ fromfiledate '' (3) '2005' (1)

→ tofiledate '' (3) '2013' (1)

→ n 3 (4)

→ lineterm '\n' (4)

3 run 21 not run

1def unified_diff(a, b, fromfile='', tofile='', fromfiledate='',
2                 tofiledate='', n=3, lineterm='\n'):
3    r"""
4    Compare two sequences of lines; generate the delta as a unified diff.
5
6    Unified diffs are a compact way of showing line changes and a few
7    lines of context.  The number of context lines is set by 'n' which
8    defaults to three.
9
10    By default, the diff control lines (those with ---, +++, or @@) are
11    created with a trailing newline.  This is helpful so that inputs
12    created from file.readlines() result in diffs that are suitable for
13    file.writelines() since both the inputs and outputs have trailing
14    newlines.
15
16    For inputs that do not have trailing newlines, set the lineterm
17    argument to "" so that the output will be uniformly newline free.
18
19    The unidiff format normally has a header for filenames and modification
20    times.  Any or all of these may be specified using strings for
21    'fromfile', 'tofile', 'fromfiledate', and 'tofiledate'.
22    The modification times are normally expressed in the ISO 8601 format.
23
24    Example:
25
26    >>> for line in unified_diff('one two three four'.split(),
27    ...             'zero one tree four'.split(), 'Original', 'Current',
28    ...             '2005-01-26 23:30:50', '2010-04-02 10:20:52',
29    ...             lineterm=''):
30    ...     print(line)                 # doctest: +NORMALIZE_WHITESPACE
31    --- Original        2005-01-26 23:30:50
32    +++ Current         2010-04-02 10:20:52
33    @@ -1,4 +1,4 @@
34    +zero
35     one
36    -two
37    -three
38    +tree
39     four
40    """
41
42    _check_types(a, b, fromfile, tofile, fromfiledate, tofiledate, lineterm)
43    started = False
44    for group in SequenceMatcher(None,a,b).get_grouped_opcodes(n):
45        if not started:
46            started = True
47            fromdate = '\t{}'.format(fromfiledate) if fromfiledate else ''
48            todate = '\t{}'.format(tofiledate) if tofiledate else ''
49            yield '--- {}{}{}'.format(fromfile, fromdate, lineterm)
50            yield '+++ {}{}{}'.format(tofile, todate, lineterm)
51
52        first, last = group[0], group[-1]
53        file1_range = _format_range_unified(first[1], last[2])
54        file2_range = _format_range_unified(first[3], last[4])
55        yield '@@ -{} +{} @@{}'.format(file1_range, file2_range, lineterm)
56
57        for tag, i1, i2, j1, j2 in group:
58            if tag == 'equal':
59                for line in a[i1:i2]:
60                    yield ' ' + line
61                continue
62            if tag in {'replace', 'delete'}:
63                for line in a[i1:i2]:
64                    yield '-' + line
65            if tag in {'replace', 'insert'}:
66                for line in b[j1:j2]:
67                    yield '+' + line
            

Path 4: 3 calls (0.17)

→ a list (1) ['hello'] (1) ['hello\n'] (1)

→ b ['hello'] (1) list (1) ['ohell\n'] (1)

→ fromfile '' (2) bytes (1)

→ tofile '' (2) bytes (1)

→ fromfiledate '' (3)

→ tofiledate '' (3)

→ n 3 (3)

→ lineterm '\n' (3)

⚠ exception TypeError (3)

1 run 23 not run

1def unified_diff(a, b, fromfile='', tofile='', fromfiledate='',
2                 tofiledate='', n=3, lineterm='\n'):
3    r"""
4    Compare two sequences of lines; generate the delta as a unified diff.
5
6    Unified diffs are a compact way of showing line changes and a few
7    lines of context.  The number of context lines is set by 'n' which
8    defaults to three.
9
10    By default, the diff control lines (those with ---, +++, or @@) are
11    created with a trailing newline.  This is helpful so that inputs
12    created from file.readlines() result in diffs that are suitable for
13    file.writelines() since both the inputs and outputs have trailing
14    newlines.
15
16    For inputs that do not have trailing newlines, set the lineterm
17    argument to "" so that the output will be uniformly newline free.
18
19    The unidiff format normally has a header for filenames and modification
20    times.  Any or all of these may be specified using strings for
21    'fromfile', 'tofile', 'fromfiledate', and 'tofiledate'.
22    The modification times are normally expressed in the ISO 8601 format.
23
24    Example:
25
26    >>> for line in unified_diff('one two three four'.split(),
27    ...             'zero one tree four'.split(), 'Original', 'Current',
28    ...             '2005-01-26 23:30:50', '2010-04-02 10:20:52',
29    ...             lineterm=''):
30    ...     print(line)                 # doctest: +NORMALIZE_WHITESPACE
31    --- Original        2005-01-26 23:30:50
32    +++ Current         2010-04-02 10:20:52
33    @@ -1,4 +1,4 @@
34    +zero
35     one
36    -two
37    -three
38    +tree
39     four
40    """
41
42    _check_types(a, b, fromfile, tofile, fromfiledate, tofiledate, lineterm)
43    started = False
44    for group in SequenceMatcher(None,a,b).get_grouped_opcodes(n):
45        if not started:
46            started = True
47            fromdate = '\t{}'.format(fromfiledate) if fromfiledate else ''
48            todate = '\t{}'.format(tofiledate) if tofiledate else ''
49            yield '--- {}{}{}'.format(fromfile, fromdate, lineterm)
50            yield '+++ {}{}{}'.format(tofile, todate, lineterm)
51
52        first, last = group[0], group[-1]
53        file1_range = _format_range_unified(first[1], last[2])
54        file2_range = _format_range_unified(first[3], last[4])
55        yield '@@ -{} +{} @@{}'.format(file1_range, file2_range, lineterm)
56
57        for tag, i1, i2, j1, j2 in group:
58            if tag == 'equal':
59                for line in a[i1:i2]:
60                    yield ' ' + line
61                continue
62            if tag in {'replace', 'delete'}:
63                for line in a[i1:i2]:
64                    yield '-' + line
65            if tag in {'replace', 'insert'}:
66                for line in b[j1:j2]:
67                    yield '+' + line