Need explanation of this error

[prerit86]

Hi,

I'm new to Python and trying to run a already written code. Can someone please 
explain the error below? And if possible, how do I resolve this?

Traceback (most recent call last):
  File "c:\Project_1\regression_1.py", line 7, in 
from sklearn import metrics, cross_validation, linear_model
  File "c:\Python27\lib\site-packages\sklearn\metrics\__init__.py", line 31, in

from . import cluster
  File "c:\Python27\lib\site-packages\sklearn\metrics\cluster\__init__.py", line
 8, in 
from .supervised import adjusted_mutual_info_score
  File "c:\Python27\lib\site-packages\sklearn\metrics\cluster\supervised.py", li
ne 19, in 
from .expected_mutual_info_fast import expected_mutual_information
  File "expected_mutual_info_fast.pyx", line 10, in init sklearn.metrics.cluster
.expected_mutual_info_fast (sklearn\metrics\cluster\expected_mutual_info_fast.c:
4886)
  File "c:\Python27\lib\site-packages\scipy\special\__init__.py", line 529, in <
module>
from ._ufuncs import *
ImportError: DLL load failed: The specified module could not be found.
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Re: Need explanation of this error

[prerit86]

Thanks!

Solved. I found the package that would resolve this dependency. It was 
numpy-MKL.

Downloaded from http://www.lfd.uci.edu/~gohlke/pythonlibs/#pandas

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File exists but Python says 'not found'.

[prerit86]

I'm running this code that reads 2 csv files (one of them is train.csv). The 
code gives an error saying 'file not does not exist'. However, the file does 
exists in the same location as the .py file. Can someone please help me on 
this. Thanks!

Code Output-->

Reading dataset...
Traceback (most recent call last):
  File "c:\Project_1\regression_2.py", line 163, in 
main(**args)
  File "c:\Project_1\regression_2.py", line 80, in main
train_data = pd.read_csv(train)
  File "c:\Python27\lib\site-packages\pandas\io\parsers.py", line 401, in parser
_f
return _read(filepath_or_buffer, kwds)
  File "c:\Python27\lib\site-packages\pandas\io\parsers.py", line 209, in _read
parser = TextFileReader(filepath_or_buffer, **kwds)
  File "c:\Python27\lib\site-packages\pandas\io\parsers.py", line 509, in __init
__
self._make_engine(self.engine)
  File "c:\Python27\lib\site-packages\pandas\io\parsers.py", line 611, in _make_
engine
self._engine = CParserWrapper(self.f, **self.options)
  File "c:\Python27\lib\site-packages\pandas\io\parsers.py", line 893, in __init
__
self._reader = _parser.TextReader(src, **kwds)
  File "parser.pyx", line 312, in pandas._parser.TextReader.__cinit__ (pandas\sr
c\parser.c:2846)
  File "parser.pyx", line 512, in pandas._parser.TextReader._setup_parser_source
 (pandas\src\parser.c:4893)
IOError: File train.csv does not exist
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Re: File exists but Python says 'not found'.

[prerit86]

The variable 'train' is being called like this ->

def main(train='train.csv', test='test.csv', submit='logistic_pred.csv'):
print "Reading dataset..."
train_data = pd.read_csv(train)
test_data = pd.read_csv(test)

Let me know if I need to post the full code.
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Re: File exists but Python says 'not found'.

[prerit86]

I got it. The working directory was different. Sorry, I'm new and didn't the 
working directory has to be the location of the data. I thought the location of 
.py file and data file should be same. Thanks! Es. Robert Kern.
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Re: File exists but Python says 'not found'.

[prerit86]

My answers

I think Robert wanted to know how you started the program. 
What instruction do you use to launch? 
- used command c:\python27\python.exe c:\project_1\code.py

In what directory are you launching your program?
- working directory was c:
- python is in c:\python27
- code was in c:\project_1
- changed the working directory to c:\project_1 now and it worked

Is that the same directory where train.csv is present? 
- train.csv is present in c:\project_1
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Re: File exists but Python says 'not found'.

[prerit86]

I know. Had I written the code, I would have not done this. I just wanted to 
get some initial results by leveraging this code. I would now build on this to 
improve my work's accuracy.

Thanks for the inputs!
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