関連ワード:  python parse text file by line    python read text file by line    python split text file by lines    python parse text file line by line regex    python read text file line by line into list    python read text file line by line into dataframe    python read text file line by line into array    python read text file line by line without newline    python read text file line by line remove newline    python read text file line by line into dictionary