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[英]How To Read Lines of CSV or Text File, Loop Over Each Line and Save To a New File For Each Line Read
[英]How to save a list as a CSV file with new lines?
我想将 Python 列表保存在 CSV 文件中,例如我有一个这样的列表:
['hello','how','are','you']
我想将其另存为:
colummn,
hello,
how,
are,
you,
我尝试了以下方法:
myfile = open('/Users/user/Projects/list.csv', 'wb')
wr = csv.writer(myfile, quoting=csv.QUOTE_ALL,'\n')
wr.writerow(pos_score)
使用熊猫to_csv
( http://pandas.pydata.org/pandas-docs/dev/generated/pandas.DataFrame.to_csv.html )
>>> import pandas as pd
>>> df = pd.DataFrame(some_list, columns=["colummn"])
>>> df.to_csv('list.csv', index=False)
如果您想要不同行上的所有单词,则需要将分隔符设置为\n
:
l = ['hello','how','are','you']
import csv
with open("out.csv","w") as f:
wr = csv.writer(f,delimiter="\n")
wr.writerow(l)
输出:
hello
how
are
you
如果你想要一个尾随逗号:
with open("out.csv","w") as f:
wr = csv.writer(f,delimiter="\n")
for ele in l:
wr.writerow([ele+","])
输出:
hello,
how,
are,
you,
我建议只编写没有尾随逗号的元素,使用尾随逗号没有任何好处,但很可能会在以后给您带来问题。
您可以将其作为键为“列”的字典的值传递给 DataFrame 构造函数,然后在 df 上调用to_csv
:
In [43]:
df = pd.DataFrame({'column':['hello','how','are','you']})
df
Out[43]:
column
0 hello
1 how
2 are
3 you
In [44]:
df.to_csv()
Out[44]:
',column\n0,hello\n1,how\n2,are\n3,you\n'
randss = np.random.choice(dsmodx.logss, 120, replace=False) # 120 表示 120 值 print(randss)
randssdf = pd.DataFrame(randss, columns=["Log Ss"]) 将数据保存为 excel randssdf.to_excel ('randomSs.xlsx' , index = False)
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