我有一个Python脚本，它的作用是打印时间和NMEA数据。
脚本：
import serial
import struct
import time
ser = serial.Serial("/dev/ttyUSB0", 4800, timeout = 1)
date = time.time()
file = open("/home/pi/GPSWIFI.csv", "w")
file.write('\n')
for i in range(0,100):
date = time.time()
val = ser.readline();
#value = val[:]
print >> file ,date,',',val
file.close()
输出：
1407854475.74 , $GPGSA,A,3,07,30,19,08,27,,,,,,,,7.4,5.5,4.9*3D
1407854475.86 , $GPRMC,144228.109,A,5323.0774,N,00636.1034,W,0.48,332.36,120814,,,A*7E
1407854476.02 , $GPVTG,332.36,T,,M,0.48,N,0.9,K,A*0F
1407854476.11 , $GPGGA,144229.000,5323.0776,N,00636.1041,W,1,05,5.5,69.8,M,55.4,M,,0000*76
1407854476.59 , $GPGLL,5323.0776,N,00636.1041,W,144229.000,A,A*45
1407854476.71 , $GPGSA,A,3,07,30,19,08,27,,,,,,,,7.4,5.5,4.9*3D
1407854476.82 , $GPRMC,144229.000,A,5323.0776,N,00636.1041,W,0.45,331.75,120814,,,A*7E
1407854476.99 , $GPVTG,331.75,T,,M,0.45,N,0.8,K,A*07
1407854477.07 , $GPGGA,144230.000,5323.0776,N,00636.1046,W,1,05,5.5,69.7,M,55.4,M,,0000*76
我想要的是我想添加输出：
sudo iwlist wlan0 scan
到每行的末尾。
我希望所有GPS个地点都有自己的无线接入点信息，例如ESSID，地址等等。
*编辑：输出 sudo iwlist wlan0 scan ：
wlan0 Scan completed :
Cell 01 - Address: FC:F5:28:B0:29:CB
Channel:4
Frequency:2.427 GHz (Channel 4)
Quality=20/100 Signal level=20/100
Encryption key:on
ESSID:"F1000a"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000635284560
Extra: Last beacon: 0ms ago
IE: Unknown: 0006463130303061
IE: Unknown: 010882848B962430486C
IE: Unknown: 030104
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 0B0503000B0000
IE: Unknown: 2D1ABC1817FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1604001700000000000000000000000000000000000000
IE: Unknown: 7F03000008
IE: Unknown: DD860050F204104A0001101044000102103B000103104700106735A89D859A8E6F9E540FD8AD0A9123102100094D69747261537461721023000C564D47383332342D423130411024000C564D47383332342D4231304110420007393633363847571054000800060050F20400011011000C564D47383332342D42313041100800020084103C000101
IE: Unknown: DD090010180203000C0000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 02 - Address: 00:26:99:4D:0D:35
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=23/100 Signal level=23/100
Encryption key:on
ESSID:"eduroam"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000f26bf99c46
Extra: Last beacon: 0ms ago
IE: Unknown: 0007656475726F616D
IE: Unknown: 010882848B0C12961824
IE: Unknown: 03010B
IE: Unknown: 0706494520010D14
IE: Unknown: 0B050200278D5B
IE: Unknown: 2A0102
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (2) : 802.1x Proprietary
IE: Unknown: 32043048606C
IE: Unknown: 851E02008F000F00FF03590045452D472D303200000000000000000002000027
IE: Unknown: 9606004096000B00
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (2) : 802.1x Proprietary
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: DD06004096010104
IE: Unknown: DD050040960305
IE: Unknown: DD050040960B09
IE: Unknown: DD050040961401
Cell 03 - Address: 00:26:99:4D:0D:30
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=23/100 Signal level=23/100
Encryption key:on
ESSID:"CONF"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000f26bf88aba
Extra: Last beacon: 0ms ago
IE: Unknown: 0004434F4E46
IE: Unknown: 010882848B0C12961824
IE: Unknown: 03010B
IE: Unknown: 0706494520010D14
IE: Unknown: 0B050200278D5B
IE: Unknown: 2A0102
IE: Unknown: 32043048606C
IE: Unknown: 851E02008F000F00FF03590045452D472D303200000000000000000002000027
IE: Unknown: 9606004096000B00
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
IE: Unknown: DD06004096010104
IE: Unknown: DD050040960305
IE: Unknown: DD050040960B09
IE: Unknown: DD050040961400*
答案 0 :(得分：0)
以下是我提出的建议：
import subprocess as s
import itertools
p = s.Popen(['/sbin/iw','wlan0','scan'], stdout=s.PIPE)
r = p.communicate()[0].replace('\n','')
# this line was missing a closing bracket and paren ------------------------vv
r = filter(None, [filter(None, item.split('\t')) for item in r.split('Cell')]) # EDITED
# an example
#r = [['WMO: asdgasdgolasikdng;laskdgn','','ERP','SSID:SGLNOE'],['BLERP'],[''],['SSID:WOWOW']]
# a_list_of_interest = ['WMO:','ERP','SSID']
# for index, cell in enumerate(r):
# tmp_cell = []
# for items in cell:
# for item in a_list_of_interest:
# if item in items:
# tmp_cell.append(items)
# r[index] = tmp_cell
merged = list(itertools.chain.from_iterable(r)) # merge the cells, or just use the index of one cell?
print(merged)
your_string += ','.join(merged) # add it to the line