在没有 csv 模块的情况下写入 csv

Question

Below is a line of code using the csv module but my goal is to try to implement the same code without the use of that module or pandas package while maintaining the same output. 我使用的 csv 文件是： https://drive.google.com/file/d/1PnQzoefx-IiB3D5BKVorcawoVFLIPVXQ/view?usp=sharing

以下是我目前在 Python 中的代码：

    def parse_planets_file(fname) : 

        import csv

        with open(fname) as inputfile : 
            reader = csv.reader(inputfile)
            inputm = list(reader)

            method = inputm.pop(0)
            del method[0]
            data = {}
            for row in inputm:
                if row[0] not in data:
                    data[row[0]] = {h:[] for h in method}

                for s, a in enumerate(method):
                    data[row[0]][a].append(float(row[s+1]) if row[s+1] else row[s+1])
            return data

fname = "exoplanets.csv"
print(parse_planets_file(fname))

另外，我的 output 包含我想跳过的 ' ' 形式的空格，我怎么会 go 呢？ 谢谢！

Answer 1

这是解析常规格式的 CSV 的方法（如描述中链接的内容）

list_of_dicts = {}
with open('exoplanets.csv','r') as file_handle:
    file_content = file_handle.read()
for line_index, line in enumerate(file_content.split('\n')):
    if line_index==0: # header
        headers = line.split(',')
    else:
        my_data = {}
        column_entries_in_this_line = line.split(',')
        for col_index, entry in enumerate(column_entries_in_this_line):
            my_data[headers[col_index]] = entry
        list_of_dicts.append(my_data)