title: How to fix the following exception opening a simple txt file?
body: <p>Hello I am trying with jupyter, I installed pandas, python and jupyter,
  In order to check if everything is ok I tried to open a txt file using pandas as follows:</p>
  
  <pre><code>import pandas as pd
  
  
  df=pd.read_csv("/authorprof/res_es.txt", sep=" ", header = None)
  </code></pre>
  
  <p>the txt file looks as follows:</p>
  
  <pre><code>Running testing authorid
  Running training authorprof
  [[325 301]
   [236 191]
   [294 274]
   [354 357]
   [237 241]
   [344 335]
   [419 401]
   [312 286]
   [209 206]
  </code></pre>
  
  <p>however I am getting the following exception: </p>
  
  <pre><code>-----------------------------------------------------------------------
  CParserError                          Traceback (most recent call last)
  &lt;ipython-input-26-c970702c41ed&gt; in &lt;module&gt;()
        3 print(sys.version)
        4 print(pd.__version__)
  ----&gt; 5 df=pd.read_csv("/authorprof/res_es.txt", sep=" ", header = None)
        6 
        7 
  
  /home/neo/anaconda3/lib/python3.5/site-packages/pandas/io/parsers.py in parser_f(filepath_or_buffer, sep, delimiter, header, names, index_col, usecols, squeeze, prefix, mangle_dupe_cols, dtype, engine, converters, true_values, false_values, skipinitialspace, skiprows, skipfooter, nrows, na_values, keep_default_na, na_filter, verbose, skip_blank_lines, parse_dates, infer_datetime_format, keep_date_col, date_parser, dayfirst, iterator, chunksize, compression, thousands, decimal, lineterminator, quotechar, quoting, escapechar, comment, encoding, dialect, tupleize_cols, error_bad_lines, warn_bad_lines, skip_footer, doublequote, delim_whitespace, as_recarray, compact_ints, use_unsigned, low_memory, buffer_lines, memory_map, float_precision)
      560                     skip_blank_lines=skip_blank_lines)
      561 
  --&gt; 562         return _read(filepath_or_buffer, kwds)
      563 
      564     parser_f.__name__ = name
  
  /home/neo/anaconda3/lib/python3.5/site-packages/pandas/io/parsers.py in _read(filepath_or_buffer, kwds)
      323         return parser
      324 
  --&gt; 325     return parser.read()
      326 
      327 _parser_defaults = {
  
  /home/neo/anaconda3/lib/python3.5/site-packages/pandas/io/parsers.py in read(self, nrows)
      813                 raise ValueError('skip_footer not supported for iteration')
      814 
  --&gt; 815         ret = self._engine.read(nrows)
      816 
      817         if self.options.get('as_recarray'):
  
  /home/neo/anaconda3/lib/python3.5/site-packages/pandas/io/parsers.py in read(self, nrows)
     1312     def read(self, nrows=None):
     1313         try:
  -&gt; 1314             data = self._reader.read(nrows)
     1315         except StopIteration:
     1316             if self._first_chunk:
  
  pandas/parser.pyx in pandas.parser.TextReader.read (pandas/parser.c:8748)()
  
  pandas/parser.pyx in pandas.parser.TextReader._read_low_memory (pandas/parser.c:9003)()
  
  pandas/parser.pyx in pandas.parser.TextReader._read_rows (pandas/parser.c:9731)()
  
  pandas/parser.pyx in pandas.parser.TextReader._tokenize_rows (pandas/parser.c:9602)()
  
  pandas/parser.pyx in pandas.parser.raise_parser_error (pandas/parser.c:23325)()
  
  CParserError: Error tokenizing data. C error: Expected 3 fields in line 71, saw 5
  </code></pre>
  
  <p>I hope someone tell me why?, I am getting that exception, I am a beginner using jupyter notebook, I believe that maybe is a kind of bug I printed my python version and pandas version to add more details:</p>
  
  <pre><code>3.5.2 |Anaconda 4.2.0 (64-bit)| (default, Jul  2 2016, 17:53:06) 
  [GCC 4.4.7 20120313 (Red Hat 4.4.7-1)]
  0.18.1
  </code></pre>