在Python和Pandas中读入.csv的一种非常通用的方法是什么？

好的，这个问题在一定程度上受到了启发：将可变数目的列转换为二进制矩阵

因此，请阅读csv，但将分隔符覆盖到选项卡上，这样它就不会尝试拆分名称：

In[7]:import pandas as pdimport iot="""Anne,Beth,Caroline,Ernie,Frank,HannahBeth,Caroline,David,ErnieCaroline,HannahDavid,,Anne,Beth,Caroline,ErnieErnie,Anne,Beth,Frank,GeorgeFrank,Anne,Caroline,HannahGeorge,Hannah,Anne,Beth,Caroline,David,Ernie,Frank,George"""df = pd.read_csv(io.StringIO(t), sep='t', header=None)dfOut[7]:        00   Anne,Beth,Caroline,Ernie,Frank,Hannah1    Beth,Caroline,David,Ernie2   Caroline,Hannah3         David,,Anne,Beth,Caroline,Ernie4 Ernie,Anne,Beth,Frank,George5   Frank,Anne,Caroline,Hannah6George,7  Hannah,Anne,Beth,Caroline,David,Ernie,Frank,Ge...

现在

str.split

expand=True

In[8]:df[0].str.split(',', expand=True)Out[8]:0         1         2         3         4       5      6       70      Anne      Beth  Caroline     Ernie     Frank  Hannah   None    None1      Beth  Caroline     David     Ernie      None    None   None    None2  Caroline    Hannah      None      None      None    None   None    None3     David     Anne      Beth  Caroline   Ernie   None    None4     Ernie      Anne      Beth     Frank    George    None   None    None5     Frank      Anne  Caroline    Hannah      None    None   None    None6    George     None      None      None    None   None    None7    Hannah      Anne      Beth  Caroline     David   Ernie  Frank  George

因此，为了清楚起见，将您的

read_csv

df = pd.read_csv(infile, header=None, sep='t')

然后做

str.split