[英]Python read txt file and create array list
I have a txt file that I read line by line with my python code: 我有一个txt文件,该文件通过python代码逐行读取:
a = open("data.txt","r")
inputF = a.readlines()
for line in inputF:
print(line)
my txt file is this: 我的txt文件是这样的:
Data: 7_8_2014
Name: Road
488597.653655, 4134910.76248
488813.848952, 4134609.01192
488904.303214, 4134480.54842
488938.462756, 4134422.3471
Name: Street
496198.193041, 4134565.19994
496312.413827, 4134568.14182
496433.652036, 4134568.08923
496559.933558, 4134547.91561
496782.196397, 4134527.70636
496923.636101, 4134512.56252
i would like to read this file txt and create a list array as this: 我想读取此文件txt并创建一个列表数组,如下所示:
coordsList = [[Road, 488597.653655, 4134910.76248],
[Road, 488813.848952, 4134609.01192],
[Road, 488904.303214, 4134480.54842],
[Road, 488938.462756, 4134422.3471],
[Street, 496198.193041, 4134565.19994],
[Street, 496312.413827, 4134568.14182],
[Street, 496433.652036, 4134568.08923],
[Street, 496559.933558, 4134547.91561],
[Street, 496782.196397, 4134527.70636],
[Street, 496923.636101, 4134512.56252]]
for each tag "Name" into txt file. 将每个标签“名称”转换为txt文件。
With your (Anton vBR) help i have update my code in this way: 在您的(Anton vBR)帮助下,我以这种方式更新了代码:
import arcpy
import os, sys
import io
with open('C:/Users/fdivito/Desktop/FinalProjectData/7_8_2014.txt', 'r') as content_file:
content = content_file.read()
i=0
output = []
for row in io.StringIO(content).readlines()[1:]: # skips first row
if row.startswith("Name"):
#i = row.split(":")[1].strip()
i+=1
else:
output.append([i]+[float(item.strip()) for item in row.split(",")])
print(output)
but i have this error: for row in io.StringIO(content).readlines()[1:]: # skips first row TypeError: initial_value must be unicode or None, not str 但是我有这个错误:对于io.StringIO(content).readlines()[1:]中的行:#跳过第一行TypeError:initial_value必须为unicode或None,不是str
updated with names and convert to float 更新名称并转换为float
How about something like this? 这样的事情怎么样?
import io
string = u"""Data: 7_8_2014
Name: Road
488597.653655, 4134910.76248
488813.848952, 4134609.01192
488904.303214, 4134480.54842
488938.462756, 4134422.3471
Name: Street
496198.193041, 4134565.19994
496312.413827, 4134568.14182
496433.652036, 4134568.08923
496559.933558, 4134547.91561
496782.196397, 4134527.70636
496923.636101, 4134512.56252"""
output = []
#with open("pathtofile.txt") as file:
# for row in file.readlines()[1:]
#code here
for row in io.StringIO(string).readlines()[1:]: # skips first row
if row.startswith("Name"):
i = row.split(":")[1].strip()
else:
output.append([i]+[float(item.strip()) for item in row.split(",")])
output
Returns: 返回值:
[['Road', 488597.653655, 4134910.76248],
['Road', 488813.848952, 4134609.01192],
['Road', 488904.303214, 4134480.54842],
['Road', 488938.462756, 4134422.3471],
['Street', 496198.193041, 4134565.19994],
['Street', 496312.413827, 4134568.14182],
['Street', 496433.652036, 4134568.08923],
['Street', 496559.933558, 4134547.91561],
['Street', 496782.196397, 4134527.70636],
['Street', 496923.636101, 4134512.56252]]
python3 solutions: python3解决方案:
`result_list = []
with open(your_file, 'r') as file_:
file_.readline() # skip the header, apparently you don't want it.
for line in file_:
if line.startswith('Name'):
current_tag = line.strip().split()[-1] # assume that the tag as no space
# else use split(':')[-1].strip()
continue
result_list.append([current_tag] + line.strip().split(','))
` `
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