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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def generateZipFile(self, outpath='.'):
 """ Generates the zip file for this builder. """

        fname = self.installName() + '.zip'
        outfile = os.path.abspath(os.path.join(outpath, fname))

        # clears out the exiting archive
        if os.path.exists(outfile):
            try:
                os.remove(outfile)
            except OSError:
                log.warning('Could not remove zipfile: %s', outfile)
                return False

        # generate the zip file
        zfile = zipfile.ZipFile(outfile, 'w')

        # zip up all relavent fields from the code base
        if os.path.isfile(self.sourcePath()):
            zfile.write(self.sourcePath(), os.path.basename(self.sourcePath()))
        else:
            basepath = os.path.abspath(os.path.join(self.sourcePath(), '..'))
            baselen = len(basepath) + 1
            for root, folders, filenames in os.walk(basepath):
                # ignore hidden folders
                if '.svn' in root or '.git' in root:
                    continue

                # ignore setuptools build info
                part = root[baselen:].split(os.path.sep)[0]
                if part in ('build', 'dist') or part.endswith('.egg-info'):
                    continue

                # include files
                for filename in filenames:
                    ext = os.path.splitext(filename)[1]
                    if ext in self.ignoreFileTypes():
                        continue

                    arcroot = root[baselen:].replace('\\', '/')
                    arcname = os.path.join(arcroot, filename)
                    log.info('Archiving %s...', arcname)
                    zfile.write(os.path.join(root, filename), arcname)

        zfile.close()
        return True