matplotlib - ImportError with Python 3 -

i trying run example thinkstats2 code. copied github - file structure same given on github.

chap01soln.py  __future__ import print_function  import numpy np import sys  import nsfg import thinkstats2   def readfemresp(dct_file='2002femresp.dct',                 dat_file='2002femresp.dat.gz',                 nrows=none):     """reads nsfg respondent data.      dct_file: string file name     dat_file: string file name      returns: dataframe     """     dct = thinkstats2.readstatadct(dct_file)     df = dct.readfixedwidth(dat_file, compression='gzip', nrows=nrows)     cleanfemresp(df)     return df   def cleanfemresp(df):     """recodes variables respondent frame.      df: dataframe     """     pass   def validatepregnum(resp):     """validate pregnum in respondent file.      resp: respondent dataframe     """     # read pregnancy frame     preg = nsfg.readfempreg()      # make map caseid list of pregnancy indices     preg_map = nsfg.makepregmap(preg)      # iterate through respondent pregnum series     index, pregnum in resp.pregnum.iteritems():         caseid = resp.caseid[index]         indices = preg_map[caseid]          # check pregnum respondent file equals         # number of records in pregnancy file         if len(indices) != pregnum:             print(caseid, len(indices), pregnum)             return false      return true   def main(script):     """tests functions in module.      script: string script name     """     resp = readfemresp()      assert(len(resp) == 7643)     assert(resp.pregnum.value_counts()[1] == 1267)     assert(validatepregnum(resp))      print('%s: tests passed.' % script)   if __name__ == '__main__':     main(*sys.argv) 

i getting importerror shown below:

traceback (most recent call last):   file "c:\wamp\www\thinkstats_py3\chap01soln.py", line 13, in <module>     import nsfg   file "c:\wamp\www\thinkstats_py3\nsfg.py", line 14, in <module>     import thinkstats2   file "c:\wamp\www\thinkstats_py3\thinkstats2.py", line 34, in <module>     import thinkplot   file "c:\wamp\www\thinkstats_py3\thinkplot.py", line 11, in <module>     import matplotlib   file "c:\python34\lib\site-packages\matplotlib\__init__.py", line 105, in <module>     import 6 importerror: no module named 'six' 

all files listed under src folder. no packages under src. tried adding packages nsfg , thinkstats error appeared. tried upgrading python 2.7 python 3.4. still getting same error. know need install 6 package matplotlib why getting import error on nsfg?

you getting import error on nsfg because internally imports matplotlib (not directly, imports thinkstats2 , imports thinkplot imports matplotlib , has dependency on six module) . , library not installed on computer, import fails.

most not have six module , can try installing using - pip install six .

or here, unzip , install using - python setup.py install