Python pandas.io.parsers.ParserWarning() Examples

The following are 5 code examples of pandas.io.parsers.ParserWarning(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module pandas.io.parsers , or try the search function .
Example #1
Source File: test_unsupported.py    From recruit with Apache License 2.0 4 votes vote down vote up 
def test_c_engine(self):
        # see gh-6607
        data = 'a b c\n1 2 3'
        msg = 'does not support'

        # specify C engine with unsupported options (raise)
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), engine='c',
                     sep=None, delim_whitespace=False)
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), engine='c', sep=r'\s')
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), engine='c', sep='\t', quotechar=chr(128))
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), engine='c', skipfooter=1)

        # specify C-unsupported options without python-unsupported options
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_csv(StringIO(data), sep=None, delim_whitespace=False)
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_csv(StringIO(data), sep=r'\s')
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_csv(StringIO(data), sep='\t', quotechar=chr(128))
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_csv(StringIO(data), skipfooter=1)

        text = """                      A       B       C       D        E
one two three   four
a   b   10.0032 5    -0.5109 -2.3358 -0.4645  0.05076  0.3640
a   q   20      4     0.4473  1.4152  0.2834  1.00661  0.1744
x   q   30      3    -0.6662 -0.5243 -0.3580  0.89145  2.5838"""
        msg = 'Error tokenizing data'

        with pytest.raises(ParserError, match=msg):
            read_csv(StringIO(text), sep='\\s+')
        with pytest.raises(ParserError, match=msg):
            read_csv(StringIO(text), engine='c', sep='\\s+')

        msg = "Only length-1 thousands markers supported"
        data = """A|B|C
1|2,334|5
10|13|10.
"""
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), thousands=',,')
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), thousands='')

        msg = "Only length-1 line terminators supported"
        data = 'a,b,c~~1,2,3~~4,5,6'
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), lineterminator='~~')
Example #2
Source File: test_unsupported.py    From vnpy_crypto with MIT License 4 votes vote down vote up 
def test_c_engine(self):
        # see gh-6607
        data = 'a b c\n1 2 3'
        msg = 'does not support'

        # specify C engine with unsupported options (raise)
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c',
                       sep=None, delim_whitespace=False)
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', sep=r'\s')
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', quotechar=chr(128))
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', skipfooter=1)

        # specify C-unsupported options without python-unsupported options
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), sep=None, delim_whitespace=False)
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), quotechar=chr(128))
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), sep=r'\s')
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), skipfooter=1)

        text = """                      A       B       C       D        E
one two three   four
a   b   10.0032 5    -0.5109 -2.3358 -0.4645  0.05076  0.3640
a   q   20      4     0.4473  1.4152  0.2834  1.00661  0.1744
x   q   30      3    -0.6662 -0.5243 -0.3580  0.89145  2.5838"""
        msg = 'Error tokenizing data'

        with tm.assert_raises_regex(ParserError, msg):
            read_table(StringIO(text), sep='\\s+')
        with tm.assert_raises_regex(ParserError, msg):
            read_table(StringIO(text), engine='c', sep='\\s+')

        msg = "Only length-1 thousands markers supported"
        data = """A|B|C
1|2,334|5
10|13|10.
"""
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), thousands=',,')
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), thousands='')

        msg = "Only length-1 line terminators supported"
        data = 'a,b,c~~1,2,3~~4,5,6'
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), lineterminator='~~')
Example #3
Source File: test_unsupported.py    From predictive-maintenance-using-machine-learning with Apache License 2.0 4 votes vote down vote up 
def test_c_engine(self):
        # see gh-6607
        data = 'a b c\n1 2 3'
        msg = 'does not support'

        # specify C engine with unsupported options (raise)
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), engine='c',
                     sep=None, delim_whitespace=False)
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), engine='c', sep=r'\s')
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), engine='c', sep='\t', quotechar=chr(128))
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), engine='c', skipfooter=1)

        # specify C-unsupported options without python-unsupported options
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_csv(StringIO(data), sep=None, delim_whitespace=False)
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_csv(StringIO(data), sep=r'\s')
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_csv(StringIO(data), sep='\t', quotechar=chr(128))
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_csv(StringIO(data), skipfooter=1)

        text = """                      A       B       C       D        E
one two three   four
a   b   10.0032 5    -0.5109 -2.3358 -0.4645  0.05076  0.3640
a   q   20      4     0.4473  1.4152  0.2834  1.00661  0.1744
x   q   30      3    -0.6662 -0.5243 -0.3580  0.89145  2.5838"""
        msg = 'Error tokenizing data'

        with pytest.raises(ParserError, match=msg):
            read_csv(StringIO(text), sep='\\s+')
        with pytest.raises(ParserError, match=msg):
            read_csv(StringIO(text), engine='c', sep='\\s+')

        msg = "Only length-1 thousands markers supported"
        data = """A|B|C
1|2,334|5
10|13|10.
"""
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), thousands=',,')
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), thousands='')

        msg = "Only length-1 line terminators supported"
        data = 'a,b,c~~1,2,3~~4,5,6'
        with pytest.raises(ValueError, match=msg):
            read_csv(StringIO(data), lineterminator='~~')
Example #4
Source File: test_unsupported.py    From elasticintel with GNU General Public License v3.0 4 votes vote down vote up 
def test_c_engine(self):
        # see gh-6607
        data = 'a b c\n1 2 3'
        msg = 'does not support'

        # specify C engine with unsupported options (raise)
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c',
                       sep=None, delim_whitespace=False)
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', sep=r'\s')
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', quotechar=chr(128))
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', skipfooter=1)

        # specify C-unsupported options without python-unsupported options
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), sep=None, delim_whitespace=False)
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), quotechar=chr(128))
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), sep=r'\s')
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), skipfooter=1)

        text = """                      A       B       C       D        E
one two three   four
a   b   10.0032 5    -0.5109 -2.3358 -0.4645  0.05076  0.3640
a   q   20      4     0.4473  1.4152  0.2834  1.00661  0.1744
x   q   30      3    -0.6662 -0.5243 -0.3580  0.89145  2.5838"""
        msg = 'Error tokenizing data'

        with tm.assert_raises_regex(ParserError, msg):
            read_table(StringIO(text), sep='\\s+')
        with tm.assert_raises_regex(ParserError, msg):
            read_table(StringIO(text), engine='c', sep='\\s+')

        msg = "Only length-1 thousands markers supported"
        data = """A|B|C
1|2,334|5
10|13|10.
"""
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), thousands=',,')
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), thousands='')

        msg = "Only length-1 line terminators supported"
        data = 'a,b,c~~1,2,3~~4,5,6'
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), lineterminator='~~')
Example #5
Source File: test_unsupported.py    From twitter-stock-recommendation with MIT License 4 votes vote down vote up 
def test_c_engine(self):
        # see gh-6607
        data = 'a b c\n1 2 3'
        msg = 'does not support'

        # specify C engine with unsupported options (raise)
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c',
                       sep=None, delim_whitespace=False)
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', sep=r'\s')
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', quotechar=chr(128))
        with tm.assert_raises_regex(ValueError, msg):
            read_table(StringIO(data), engine='c', skipfooter=1)

        # specify C-unsupported options without python-unsupported options
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), sep=None, delim_whitespace=False)
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), quotechar=chr(128))
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), sep=r'\s')
        with tm.assert_produces_warning(parsers.ParserWarning):
            read_table(StringIO(data), skipfooter=1)

        text = """                      A       B       C       D        E
one two three   four
a   b   10.0032 5    -0.5109 -2.3358 -0.4645  0.05076  0.3640
a   q   20      4     0.4473  1.4152  0.2834  1.00661  0.1744
x   q   30      3    -0.6662 -0.5243 -0.3580  0.89145  2.5838"""
        msg = 'Error tokenizing data'

        with tm.assert_raises_regex(ParserError, msg):
            read_table(StringIO(text), sep='\\s+')
        with tm.assert_raises_regex(ParserError, msg):
            read_table(StringIO(text), engine='c', sep='\\s+')

        msg = "Only length-1 thousands markers supported"
        data = """A|B|C
1|2,334|5
10|13|10.
"""
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), thousands=',,')
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), thousands='')

        msg = "Only length-1 line terminators supported"
        data = 'a,b,c~~1,2,3~~4,5,6'
        with tm.assert_raises_regex(ValueError, msg):
            read_csv(StringIO(data), lineterminator='~~')