【发布时间】:2018-12-01 19:53:36
【问题描述】:
我正在将一些 linux 日志数据转换为 CSV 用于数据分析。有些说明需要一些时间,所以我想我会为每个正在翻译的文件添加一个进度条。但是,当使用progresspar2 或tqdm 放入进度条时,我的pandas 数据框和null。根本没有数据。当我删除进度条时,一切正常。
这是我的 CSV 翻译函数:
import pandas as pd
from dateutil import parser
from tqdm import trange
import os
import glob
import csv
import socket
def logsToCSV():
print("[+] Translating log to CSV")
log_file = open(CSV_FILE_PATH, "w", newline='')
csv_w = csv.writer(log_file)
for filename in glob.glob(os.path.join(LOGS_FILE_PATH, '*.txt')): # Find all files in path with .txt
data_file = open(filename, "r")
file_length = len(data_file.readlines())
for i in trange(file_length, desc='loop', leave=False): # Progress Bar Via TQDM
for new_line in data_file:
new_line = line.strip().split(" ")
date = str("%s %s %s" % (new_line[0], new_line[1], new_line[2])).strip()
date = parser.parse(date)
ip =str(new_line[5]).partition("/")
ip = str(ip[0]).strip()
try:
url = str(new_line[7]).strip()
except:
url = None
csv_w.writerow([date,ip,url])
TQDM 正在破坏某些东西,或者我执行不正确。
编辑 1:
我想通了。我在 readlines() 期间用尽了读取的文件以获取长度。这有效:
def logsToCSV():
print("[+] Translating log to CSV")
log_file = open(CSV_FILE_PATH, "w", newline='')
csv_w = csv.writer(log_file)
path, dirs, files = next(os.walk(LOGS_FILE_PATH))
log_num = len(files)
print(log_num)
for filename in glob.glob(os.path.join(LOGS_FILE_PATH, '*.txt')): # Find all files in path with .txt
data_file = open(filename, "r")
with open(filename, "r") as f:
file_length = len(f.readlines())
f.close()
pbar = tqdm(total=file_length)
for line in data_file:
new_line = line.strip().split(" ")
date = str("%s %s %s" % (new_line[0], new_line[1], new_line[2])).strip()
date = parser.parse(date)
ip =str(new_line[5]).partition("/")
ip = str(ip[0]).strip()
try:
url = str(new_line[7]).strip()
except:
url = None
csv_w.writerow([date,ip,url])
pbar.update(1)
pbar.close()
【问题讨论】:
标签: python python-3.x tqdm