I am trying to use Pandas library to read csv files, using Eclipse's PyDev.
foo.csv file:
"head1", "head2",
"A", "123"
test.py:
import pandas as pd
data = pd.read_csv('foo.csv');
print data
I ran this and got an error:
Traceback (most recent call last):
File "C:\Users\qqq\studyspace\macd\test3.py", line 4, in <module>
print data
File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 666, in __str__
return self.__bytes__()
File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 676, in __bytes__
return self.__unicode__().encode(encoding, 'replace')
File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 691, in __unicode__
fits_horizontal = self._repr_fits_horizontal_()
File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 651, in _repr_fits_horizontal_
d.to_string(buf=buf)
File "C:\Python27\lib\site-packages\pandas\core\frame.py", line 1488, in to_string
formatter.to_string()
File "C:\Python27\lib\site-packages\pandas\core\format.py", line 314, in to_string
strcols = self._to_str_columns()
File "C:\Python27\lib\site-packages\pandas\core\format.py", line 258, in _to_str_columns
str_index = self._get_formatted_index()
File "C:\Python27\lib\site-packages\pandas\core\format.py", line 472, in _get_formatted_index
fmt_index = [index.format(name=show_index_names, formatter=fmt)]
File "C:\Python27\lib\site-packages\pandas\core\index.py", line 450, in format
return self._format_with_header(header, **kwargs)
File "C:\Python27\lib\site-packages\pandas\core\index.py", line 472, in _format_with_header
result = _trim_front(format_array(values, None, justify='left'))
File "C:\Python27\lib\site-packages\pandas\core\format.py", line 1321, in format_array
return fmt_obj.get_result()
File "C:\Python27\lib\site-packages\pandas\core\format.py", line 1448, in get_result
return _make_fixed_width(fmt_values, self.justify)
File "C:\Python27\lib\site-packages\pandas\core\format.py", line 1495, in _make_fixed_width
max_len = np.max([_strlen(x) for x in strings])
File "C:\Python27\lib\site-packages\pandas\core\format.py", line 184, in _strlen
return len(x.decode(encoding))
LookupError: unknown encoding: MS874
I have tried to run this in IPython, and it does not give the error, so I think the problem is with my Eclipse setting. I use Eclipse Juno and I installed Pandas via Python(x,y).
I have tried to solve it blindly like this
import pandas as pd
data = pd.read_csv('foo.csv');
b = True;
while(b):
try:
print data
b = False
except:
print 'foooo'
And it just printed 'foooo' forever.
I have found the solution.
Right click on the project => Properties => Resource => Text file encoding. Choose other => UTF-8.
Related
I want to save the data set as a parquet file, called power.parquet, and I use df.to_parquet(<filename>). But it gives me this errer "ValueError: Error converting column "Global_reactive_power" to bytes using encoding UTF8. Original error: bad argument type for built-in operation" And I installed the fastparquet package.
from fastparquet import write, ParquetFile
dat.to_parquet("power.parquet")
df_parquet = ParquetFile("power.parquet").to_pandas()
df_parquet.head() # Test your final value
`*Traceback (most recent call last):
File "/opt/anaconda3/lib/python3.9/site-packages/fastparquet/writer.py", line 259, in convert
out = array_encode_utf8(data)
File "fastparquet/speedups.pyx", line 50, in fastparquet.speedups.array_encode_utf8
TypeError: bad argument type for built-in operation
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "/var/folders/4f/bm2th1p56tz4rq_zffc8g3940000gn/T/ipykernel_85477/3080656655.py", line 1, in <module>
dat.to_parquet("power.parquet", compression="GZIP")
File "/opt/anaconda3/lib/python3.9/site-packages/dask/dataframe/core.py", line 4560, in to_parquet
return to_parquet(self, path, *args, **kwargs)
File "/opt/anaconda3/lib/python3.9/site-packages/dask/dataframe/io/parquet/core.py", line 732, in to_parquet
return compute_as_if_collection(
File "/opt/anaconda3/lib/python3.9/site-packages/dask/base.py", line 315, in compute_as_if_collection
return schedule(dsk2, keys, **kwargs)
File "/opt/anaconda3/lib/python3.9/site-packages/dask/threaded.py", line 79, in get
results = get_async(
File "/opt/anaconda3/lib/python3.9/site-packages/dask/local.py", line 507, in get_async
raise_exception(exc, tb)
File "/opt/anaconda3/lib/python3.9/site-packages/dask/local.py", line 315, in reraise
raise exc
File "/opt/anaconda3/lib/python3.9/site-packages/dask/local.py", line 220, in execute_task
result = _execute_task(task, data)
File "/opt/anaconda3/lib/python3.9/site-packages/dask/core.py", line 119, in _execute_task
return func(*(_execute_task(a, cache) for a in args))
File "/opt/anaconda3/lib/python3.9/site-packages/dask/utils.py", line 35, in apply
return func(*args, **kwargs)
File "/opt/anaconda3/lib/python3.9/site-packages/dask/dataframe/io/parquet/fastparquet.py", line 1167, in write_partition
rg = make_part_file(
File "/opt/anaconda3/lib/python3.9/site-packages/fastparquet/writer.py", line 716, in make_part_file
rg = make_row_group(f, data, schema, compression=compression,
File "/opt/anaconda3/lib/python3.9/site-packages/fastparquet/writer.py", line 701, in make_row_group
chunk = write_column(f, coldata, column,
File "/opt/anaconda3/lib/python3.9/site-packages/fastparquet/writer.py", line 554, in write_column
repetition_data, definition_data, encode[encoding](data, selement), 8 * b'\x00'
File "/opt/anaconda3/lib/python3.9/site-packages/fastparquet/writer.py", line 354, in encode_plain
out = convert(data, se)
File "/opt/anaconda3/lib/python3.9/site-packages/fastparquet/writer.py", line 284, in convert
raise ValueError('Error converting column "%s" to bytes using '
ValueError: Error converting column "Global_reactive_power" to bytes using encoding UTF8. Original error: bad argument type for built-in operation
*
I tried by adding object_coding = "bytes".I want to solve this problem.
Hi everybody I have a problem uploading a excel file with Pandas
I have taken the file in archive, if I uploaded it directly it gaves me an error. If I cope and paste the excel file there is no problem.
The code is very easy:
data = pd.read_excel(r"C:\Users\obett\Desktop\Corporate Governance\pandas.xlsx")
and this is the error:
Traceback (most recent call last):
File "C:/Users/obett/PycharmProjects/pythonProject6/main.py", line 24, in <module>
data = pd.read_excel(r"C:\Users\obett\Desktop\Corporate Governance\Aida_Export_67.xlsx")
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\pandas\util\_decorators.py", line 299, in wrapper
return func(*args, **kwargs)
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\pandas\io\excel\_base.py", line 344, in read_excel
data = io.parse(
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\pandas\io\excel\_base.py", line 1170, in parse
return self._reader.parse(
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\pandas\io\excel\_base.py", line 492, in parse
data = self.get_sheet_data(sheet, convert_float)
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\pandas\io\excel\_openpyxl.py", line 549, in get_sheet_data
converted_row = [self._convert_cell(cell, convert_float) for cell in row]
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\pandas\io\excel\_openpyxl.py", line 549, in <listcomp>
converted_row = [self._convert_cell(cell, convert_float) for cell in row]
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\pandas\io\excel\_openpyxl.py", line 514, in _convert_cell
elif cell.is_date:
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\openpyxl\cell\read_only.py", line 101, in is_date
return Cell.is_date.__get__(self)
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\openpyxl\cell\cell.py", line 256, in is_date
self.data_type == 'n' and is_date_format(self.number_format)
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\openpyxl\cell\read_only.py", line 66, in number_format
_id = self.style_array.numFmtId
File "C:\Users\obett\PycharmProjects\pythonProject6\venv\lib\site-packages\openpyxl\cell\read_only.py", line 56, in style_array
return self.parent.parent._cell_styles[self._style_id]
IndexError: list index out of range
Thank you very much
In Python 2.7 I am trying to calculate the position and velocity of an observatory by doing
>>> from astropy.time import Time
>>> from astropy.coordinates import SkyCoord, EarthLocation, ICRS
>>> from astropy import units as u
>>> from astropy import coordinates
>>> time=Time(58121.93, format='mjd')
>>> location=EarthLocation(53.2367, 2.3085, 100, ellipsoid = None)
>>> op, ov = location.get_gcrs_posvel(time)
But I get the error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "C:\p\lib\site-packages\astropy\coordinates\earth.py", line 653, in get_gcrs_posvel
gcrs_data = self._get_gcrs(obstime).data
File "C:\p\lib\site-packages\astropy\coordinates\earth.py", line 633, in _get_gcrs
return itrs.transform_to(GCRS(obstime=obstime))
File "C:\p\lib\site-packages\astropy\coordinates\baseframe.py", line 934, in transform_to
return trans(self, new_frame)
File "C:\p\lib\site-packages\astropy\coordinates\transformations.py", line 1314, in __call__
curr_coord = t(curr_coord, curr_toframe)
File "C:\p\lib\site-packages\astropy\coordinates\transformations.py", line 847, in __call__
reprwithoutdiff = supcall(from_diffless, toframe)
File "C:\p\lib\site-packages\astropy\coordinates\builtin_frames\intermediate_rotation_transforms.py", line 72, in cirs_to_gcrs
return gcrs.transform_to(gcrs_frame)
File "C:\p\lib\site-packages\astropy\coordinates\baseframe.py", line 934, in transform_to
return trans(self, new_frame)
File "C:\p\lib\site-packages\astropy\coordinates\transformations.py", line 1314, in __call__
curr_coord = t(curr_coord, curr_toframe)
File "C:\p\lib\site-packages\astropy\coordinates\transformations.py", line 914, in __call__
return supcall(fromcoord, toframe)
File "C:\p\lib\site-packages\astropy\coordinates\builtin_frames\icrs_cirs_transforms.py", line 221, in gcrs_to_gcrs
return from_coo.transform_to(ICRS).transform_to(to_frame)
File "C:\p\lib\site-packages\astropy\coordinates\baseframe.py", line 934, in transform_to
return trans(self, new_frame)
File "C:\p\lib\site-packages\astropy\coordinates\transformations.py", line 1314, in __call__
curr_coord = t(curr_coord, curr_toframe)
File "C:\p\lib\site-packages\astropy\coordinates\transformations.py", line 914, in __call__
return supcall(fromcoord, toframe)
File "C:\p\lib\site-packages\astropy\coordinates\builtin_frames\icrs_cirs_transforms.py", line 188, in gcrs_to_icrs
i_ra, i_dec = aticq(gcrs_ra, gcrs_dec, astrom)
File "C:\p\lib\site-packages\astropy\coordinates\builtin_frames\utils.py", line 196, in aticq
before = norm(ppr-d)
File "C:\p\lib\site-packages\astropy\coordinates\builtin_frames\utils.py", line 125, in norm
return p/np.sqrt(np.einsum('...i,...i', p, p))[..., np.newaxis]
File "C:\p\lib\site-packages\numpy\core\einsumfunc.py", line 1087, in einsum
einsum_call=True)
File "C:\p\lib\site-packages\numpy\core\einsumfunc.py", line 688, in einsum_path
input_subscripts, output_subscript, operands = _parse_einsum_input(operands)
File "C:\p\lib\site-packages\numpy\core\einsumfunc.py", line 432, in _parse_einsum_input
raise TypeError("For this input type lists must contain "
TypeError: For this input type lists must contain either int or Ellipsis
I searched for this issue on Astropy's issue tracker and came across this:
numpy TypeError on coordinate transform (TypeError: For this input type lists must contain either int or Ellipsis)
It was fixed as of Astropy v2.0.4, so, pretty recent. You should be able to upgrade your Astropy.
I get an error that a file does not exist while I have the file there in the folder, would you please tell me where I am making a mistake?
pd.DataFrame.from_csv
I am getting an error shown below.
Traceback (most recent call last):
File "main.py", line 194, in <module>
start_path+end_res)
File "/Users/admin/Desktop/script/mergeT.py", line 5, in merge
df_peak = pd.DataFrame.from_csv(peak_score, index_col = False, sep='\t')
File "/Library/Python/2.7/site-packages/pandas/core/frame.py", line 1231, in from_csv
infer_datetime_format=infer_datetime_format)
File "/Library/Python/2.7/site-packages/pandas/io/parsers.py", line 645, in parser_f
return _read(filepath_or_buffer, kwds)
File "/Library/Python/2.7/site-packages/pandas/io/parsers.py", line 388, in _read
parser = TextFileReader(filepath_or_buffer, **kwds)
File "/Library/Python/2.7/site-packages/pandas/io/parsers.py", line 729, in __init__
self._make_engine(self.engine)
File "/Library/Python/2.7/site-packages/pandas/io/parsers.py", line 922, in _make_engine
self._engine = CParserWrapper(self.f, **self.options)
File "/Library/Python/2.7/site-packages/pandas/io/parsers.py", line 1389, in __init__
self._reader = _parser.TextReader(src, **kwds)
File "pandas/parser.pyx", line 373, in pandas.parser.TextReader.__cinit__ (pandas/parser.c:4175)
File "pandas/parser.pyx", line 667, in pandas.parse**strong text**r.TextReader._setup_parser_source (pandas/parser.c:8440)
IOError: File results\scoring\fed\score_peak.txt does not exist
I have tried to set a path to the exact file
for example
As per documentation of pandas 0.19.1 pandas.DataFrame.from_csv does not support index_col = False. Try to use pandas.read_csv instead (with the same parameters). Also make sure you are using the up to date version of pandas.
See if this works:
import pandas as pd
def merge(peak_score, profile_score, res_file):
df_peak = pd.read_csv(peak_score, index_col = False, sep='\t')
df_profile = pd.read_csv(profile_score, index_col = False, sep='\t')
result = pd.concat([df_peak, df_profile], axis=1)
print result.head()
test = []
for a,b in zip(result['prot_a_p'],result['prot_b_p']):
if a == b:
test.append(1)
else:
test.append(0)
result['test']=test
result = result[result['test']==0]
del result['test']
result = result.fillna(0)
result.to_csv(res_file)
if __name__ == '__main__':
pass
Regarding the path issue when changing from Windows to OS X:
In all flavours of Unix, paths are written with slashes /, while in Windows backslashes \ are used. Since OS X is a descendant of Unix, as other users have correctly pointed out, when you change there from Windows you need to adapt your paths.
here is the sample code:
from mechanize import Browser
br = Browser()
page = br.open('http://hunters.tclans.ru/news.php?readmore=2')
br.form = br.forms().next()
print br.form
The problem is that server return incorrect encoding (windows-cp1251). How can I manually set the encoding of the current page in mechanize?
Error:
Traceback (most recent call last):
File "/tmp/stackoverflow.py", line 5, in <module>
br.form = br.forms().next()
File "/usr/local/lib/python2.6/dist-packages/mechanize/_mechanize.py", line 426, in forms
return self._factory.forms()
File "/usr/local/lib/python2.6/dist-packages/mechanize/_html.py", line 559, in forms
self._forms_factory.forms())
File "/usr/local/lib/python2.6/dist-packages/mechanize/_html.py", line 225, in forms
_urlunparse=_rfc3986.urlunsplit,
File "/usr/local/lib/python2.6/dist-packages/ClientForm.py", line 967, in ParseResponseEx
_urlunparse=_urlunparse,
File "/usr/local/lib/python2.6/dist-packages/ClientForm.py", line 1104, in _ParseFileEx
fp.feed(data)
File "/usr/local/lib/python2.6/dist-packages/ClientForm.py", line 870, in feed
sgmllib.SGMLParser.feed(self, data)
File "/usr/lib/python2.6/sgmllib.py", line 104, in feed
self.goahead(0)
File "/usr/lib/python2.6/sgmllib.py", line 193, in goahead
self.handle_entityref(name)
File "/usr/local/lib/python2.6/dist-packages/ClientForm.py", line 751, in handle_entityref
'&%s;' % name, self._entitydefs, self._encoding))
File "/usr/local/lib/python2.6/dist-packages/ClientForm.py", line 238, in unescape
return re.sub(r"&#?[A-Za-z0-9]+?;", replace_entities, data)
File "/usr/lib/python2.6/re.py", line 151, in sub
return _compile(pattern, 0).sub(repl, string, count)
File "/usr/local/lib/python2.6/dist-packages/ClientForm.py", line 230, in replace_entities
repl = repl.encode(encoding)
LookupError: unknown encoding: windows-cp1251
I don't know about Mechanize, but you could hack codecs to accept wrong encoding names that have both ‘windows’ and ‘cp’:
>>> def fixcp(name):
... if name.lower().startswith('windows-cp'):
... try:
... return codecs.lookup(name[:8]+name[10:])
... except LookupError:
... pass
... return None
...
>>> codecs.register(fixcp)
>>> '\xcd\xe0\xef\xee\xec\xe8\xed\xe0\xe5\xec'.decode('windows-cp1251')
u'Напоминаем'
Fixed by setting
br._factory.encoding = enc
br._factory._forms_factory.encoding = enc
br._factory._links_factory._encoding = enc
(note the underscores) after br.open()