有沒有更好的方法來使用with open(file) as f: f.read()for 循環(huán)內(nèi)的機制 - 即對許多文件進行操作的循環(huán)理解？我試圖將它放入一個數(shù)據(jù)幀中，以便存在從文件到文件內(nèi)容的映射。這是我所擁有的 - 但它似乎效率低下并且不是pythonic/可讀的：documents = pd.DataFrame(glob.glob('*.txt'), columns = ['files'])documents['text'] = [np.nan]*len(documents)for txtfile in documents['files'].tolist(): if txtfile.startswith('GSE'): with open(txtfile) as f: documents['text'][documents['files']==txtfile] = f.read()輸出： files text0 GSE2640_GSM50721.txt | RNA was extracted from lung tissue using a T...1 GSE7002_GSM159771.txt Array Type : Rat230_2 ; Amount to Core : 15 ; ...2 GSE1560_GSM26799.txt | C3H denotes C3H / HeJ mice whereas C57 denot...3 GSE2171_GSM39147.txt | HIV seropositive , samples used to test HIV ...
2 回答
阿晨1998
TA貢獻2037條經(jīng)驗 獲得超6個贊
你可以做：
# import libraries
import os,pandas
# list filenames, assuming your path is './'
files = [i for i in os.listdir('./') if i[:3]=='GSE' and i[-3:]=='txt']
# get contents of files
contents = []
for i in files:
with open(i) as f: contents.append(f.read().strip())
# into a nice table
table = pandas.DataFrame(contents, index=files, columns=['text'])
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