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homework6/review

+Summary:
+代码有个小的空格的问题
+
+Detailed Comments:
+1、def parse(path):
+   g = gzip.open(path, 'rb')
+   for l in g:
+       yield eval(l)
+这个代码的yield有空格，不符合python语法，需要重新空4格；还有getDF
+函数下的i _=1这一行代码也存在这个问题
+
+2、有时间自己多加练习，最好在不参考老师代码的情况下，自己多练习
+
+Overall Score: 83
+--------------------------------------------------------------------------------------------------------------------------
+
+Thanks for your efforts.
+
+-Your instructor
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