Python:列表理解语句中的语法错误

Question

missing_buckets = [x in timebuckets if ((x not in found_tenors) and (x == '1y' or x[-1] != 'y'))]

我得到一个错误：

missing_buckets = [x in timebuckets if ((x not in found_tenors) and (x == '1y' or x[-1] != 'y'))]
                                                                                                ^
SyntaxError: invalid syntax

Answer 1

你忘了“为x在”：

missing_buckets = [x for x in timebuckets if ((x not in found_tenors) and (x == '1y' or x[-1] != 'y'))]

Answer 2

missing_buckets = [x for x in timebuckets if ((x not in found_tenors) and (x == '1y' or  x[-1] != 'y'))]
                   ^^^^^