parsing

How to extract year (or datetime) from a column in a pandas dataframe that contains text

隐身守侯 提交于 2020-07-31 05:55:50
问题 Suppose I have a pandas dataframe: Id Book 1 Harry Potter (1997) 2 Of Mice and Men (1937) 3 Babe Ruth Story, The (1948) Drama 948) Babe Ruth Story How do I extract the year from the column? Output should be: Id Book Title Year 1 Harry Potter 1997 2 Of Mice and Men 1937 3 Babe Ruth Story, The 1948

How to extract year (or datetime) from a column in a pandas dataframe that contains text

夙愿已清 提交于 2020-07-31 05:55:20
问题 Suppose I have a pandas dataframe: Id Book 1 Harry Potter (1997) 2 Of Mice and Men (1937) 3 Babe Ruth Story, The (1948) Drama 948) Babe Ruth Story How do I extract the year from the column? Output should be: Id Book Title Year 1 Harry Potter 1997 2 Of Mice and Men 1937 3 Babe Ruth Story, The 1948

What regular expression can I use to find the Nᵗʰ entry in a comma-separated list?

六月ゝ 毕业季﹏ 提交于 2020-07-28 19:10:22
问题 I need a regular expression that can be used to find the N th entry in a comma-separated list. For example, say this list looks like this: abc,def,4322,mail@mailinator.com,3321,alpha-beta,43 ...and I wanted to find the value of the 7 th entry ( alpha-beta ). 回答1: My first thought would not be to

What regular expression can I use to find the Nᵗʰ entry in a comma-separated list?

心不动则不痛 提交于 2020-07-28 19:07:29
问题 I need a regular expression that can be used to find the N th entry in a comma-separated list. For example, say this list looks like this: abc,def,4322,mail@mailinator.com,3321,alpha-beta,43 ...and I wanted to find the value of the 7 th entry ( alpha-beta ). 回答1: My first thought would not be to

What regular expression can I use to find the Nᵗʰ entry in a comma-separated list?

天大地大妈咪最大 提交于 2020-07-28 19:07:12
问题 I need a regular expression that can be used to find the N th entry in a comma-separated list. For example, say this list looks like this: abc,def,4322,mail@mailinator.com,3321,alpha-beta,43 ...and I wanted to find the value of the 7 th entry ( alpha-beta ). 回答1: My first thought would not be to