Question

^[\s\S]{0,255}$

以上是我的代码。因此要求是从.csv文件加载数据到元组列表。文件中的数据类似于：

def loadfunc(filestr):
listoftuples = []
listofnumbers = []
tupleinlist = []
with open(filestr, 'r') as file:
    for line in file:
        for item in line:
            if item.isdigit():
                listofnumbers.append(float(item))
            else:
                word = item
tupleinlist.append(word)
tupleinlist.append(listofnumbers)
listoftuples.append(tuple(tupleinlist))
return listoftuples
print(listoftuples)

对于列表中的每个元组，它必须是- apple 23.2 24.3 25.6 - banana 22.1 20.0 19.9，所以列表看起来像：

(word, listoffloats)

但是使用我的代码会将其搞砸并且不会返回它，因为当它在每个“行”中迭代“item”时，它会迭代每个字符（例如[(apple, [23.2, 24.3, 25.6]), (banana, [22.1, 20.0, 219.9])]，.， a，p，p，l）而不是项目如e，apple等。

请帮助我不知道如何解决这个问题，不允许在本教程中使用csv库/模块。

Answer 1

让我们说你有t.csv中的数据。您可以将数据保存在split列表中，然后在文件的每一行使用results，并将拆分结果附加到split。使用csv模块可以为您完成此操作，但您可以使用with open('t.csv', 'r') as f: results = [] for line in f: words = line.split(',') results.append((words[0], words[1:])) print results复制分隔符行为。

lessons.insert({
name: 'some_name',
audio_files: [
  [
    {
      paths: 'paths/to/file1',
      transcriptions: [
      'Transcript ..........1',
      'Transcript ..........2',
      'Transcript ..........3',
      ]
    }
  ],
  [
    {
      paths: 'paths/to/file2',
      transcriptions: [
      'Transcript ..........1',
      'Transcript ..........2',
      'Transcript ..........3',
      ]
    }
  ],
]
});

Answer 2

考虑输入文件包含

之类的输入

# in.txt
# apple 23.2 24.3 25.6
# banana 22.1 20.0 19.9
# end
from collections import defaultdict

def get_word_float(infile_str):
    d = defaultdict(list)
    with open(infile_str) as inf:
        for l in inf:
            item = l.split() # split by space             
            d[item[0]].extend(map(float, item[1:]))
    return d

print(get_word_float('in.txt'))

# defaultdict(<class 'list'>, {'apple': [23.2, 24.3, 25.6], 'banana': [22.1, 20.0, 19.9]})

Answer 3

with open('a.csv', 'r') as f:
    #read from csv line by line, rstrip helps to remove '\n' at the end of line
    lines = [line.rstrip() for line in f] 

results = []
for line in lines:
    words = line.split(',')#get each item in one line
    listOfFloat = map(float,words[1:])# convert string to float
    tup = (words[0],listOfFloat)
    results.append(tup)
print results

如何在不导入.csv模块/库的情况下从.csv文件加载数据

3 个答案: