将带有元组数组的 CSV 转换回 int

Question

我有一个元组数组，逐行存储在 csv 中，我想将它们转换回来，但每次我将它们转换回来时，它们仍然是字符串，我需要它们是整数。

"(1013, 294)","(872, 258)","(744, 190)","(704, 124)","(758, 78)","(853, 121)","(862, 68)","(861, 130)","(861, 166)","(972, 123)","(979, 67)","(956, 145)","(949, 177)","(1088, 136)","(1096, 85)","(1061, 155)","(1050, 188)","(1201, 158)","(1198, 121)","(1152, 168)","(1132, 194)"
"(1037, 305)","(906, 259)","(798, 192)","(756, 126)","(790, 78)","(894, 109)","(882, 29)","(873, -14)","(875, -52)","(1010, 119)","(1046, 72)","(1012, 150)","(990, 192)","(1122, 139)","(1156, 101)","(1101, 174)","(1069, 209)","(1224, 172)","(1248, 140)","(1189, 187)","(1152, 214)"
"(1031, 315)","(891, 269)","(812, 196)","(863, 130)","(968, 101)","(865, 117)","(813, 39)","(791, -10)","(778, -54)","(985, 113)","(989, 17)","(997, -33)","(1004, -70)","(1102, 132)","(1135, 57)","(1093, 105)","(1056, 152)","(1208, 170)","(1219, 124)","(1163, 156)","(1117, 192)"

所需的输出应如下所示：

handData =[(1013, 294), (872, 258), (744, 190), (704, 124), (758, 78), (853, 121), (862, 68), (861, 130), (861, 166), (972, 123), (979, 67), (956, 145), (949, 177), (1088, 136), (1096, 85), (1061, 155), (1050, 188), (1201, 158), (1198, 121), (1152, 168), (1132, 194)]

当前代码：

with open('gesture_data.csv', 'r', newline='') as f:
            reader = csv.reader(f)
            examples = list(reader)

给出这个：

[['(1013, 294)', '(872, 258)', '(744, 190)', '(704, 124)', '(758, 78)', '(853, 121)', '(862, 68)', '(861, 130)', '(861, 166)', '(972, 123)', '(979, 67)', '(956, 145)', '(949, 177)', '(1088, 136)', '(1096, 85)', '(1061, 155)', '(1050, 188)', '(1201, 158)', '(1198, 121)', '(1152, 168)', '(1132, 194)'], ['(1037, 305)', '(906, 259)', '(798, 192)', '(756, 126)', '(790, 78)', '(894, 109)', '(882, 29)', '(873, -14)', '(875, -52)', '(1010, 119)', '(1046, 72)', '(1012, 150)', '(990, 192)', '(1122, 139)', '(1156, 101)', '(1101, 174)', '(1069, 209)', '(1224, 172)', '(1248, 140)', '(1189, 187)', '(1152, 214)'], ['(1031, 315)', '(891, 269)', '(812, 196)', '(863, 130)', '(968, 101)', '(865, 117)', '(813, 39)', '(791, -10)', '(778, -54)', '(985, 113)', '(989, 17)', '(997, -33)', '(1004, -70)', '(1102, 132)', '(1135, 57)', '(1093, 105)', '(1056, 152)', '(1208, 170)', '(1219, 124)', '(1163, 156)', '(1117, 192)']]

Answer 1

您可以使用 regex 表达式将情侣中的数字和 map 匹配为整数：

import re

handData = [tuple(map(int, re.findall('\d+', string[1:-1]))) for string in examples[0]]

将带有元组数组的 CSV 转换回 int

Convert CSV with array of tuples back to int

python

csv

numpy