如何从 CSV 文件中提取数据并导入 Python 中的字典？

Question

I'm new in python new developer, just started my intership. So, I have a csv file with datas customized like that

Event Category,Event Label,Total Events,Unique Events,Event Value,Avg. Value

From each row of the file I want to extract the labels of the ports (bellow) in an dictionary and add the total and unic events too. The total and unique events I have to sum them only the ports with same labels (not being dublicate). My datas look like that: 'Search,Santorin (JTR) - Paros (PAS) - Santorin (JTR),"2,199","1,584",0,0.00' I want my dictionary to look like that:

data_file = 'Analytics.csv' ports_dict = { # "ATH-HER": [10000, 5000], # "ATH-JTR": [20000, 3500], # "HER-JTR": [100, 500] }

 data = 'Analytics.csv'
#row= 'Search,Santorin (JTR) - Paros (PAS) - Santorin (JTR),"2,199","1,584",0,0.00'
def extract_counts(data):
  ports = []
  for i in data.split('"')[1:]:
      ports.append(i.split('"')[0])
  return ports

An example from my code is this, when I'm running with the row runs ok when I'm using 'data' it gives me back an empty string. Can Anyone help me with this?

extract_counts(data) Out[13]: []

What I have to do to run this for the whole csv Thank you for your help!

Answer 1

First of all, 'data' is just a string variable. In your loop, you are iterating over each character, not reading a file. Using split on a single character with '"', results in an empty string.

To begin your journey with reading CSV files in Python, I recommend:

• https://realpython.com/python-csv/
• https://docs.python.org/3/library/csv.html