Python程序不能写入输出csv，其他一切似乎都正常
Python程序不能写入输出csv，其他一切似乎都正常
提问于 2018-06-25 00:17:20
from subprocess import check_output
import csv, operator
extinction_pct = operator.itemgetter('AOT 500','AOT 675','AOT 870','AOT 936','AOT 1020')
with open('csv_export.csv') as f_csv:
reader = csv.DictReader(f_csv)
for row in reader:
with open("INPUT", 'w') as f_in:
f_in.write("&INPUT\n")
f_in.write("WLINF = 0.250\n") #lower frequency value
f_in.write("WLSUP = 4.0\n") #highest frequency value
f_in.write("WLINC = 0.5\n") #wavelength increment
f_in.write("IDAY = 289\n") #computing for a specific day
#f_in.write("ALAT = {Lat}\n".format(**row)) # for Python versions less than 3.6
f_in.write(f"ALAT = {row['Lat']}\n") #latitude of the location
#f_in.write("ALON = {Long}\n".format(**row)) # for Python versions less than 3.6
f_in.write(f"ALON = {row['Long']}\n") #longitude of the location
f_in.write("IDATM = 3\n") #atmopsheric model 2 - mid latitude summer
f_in.write("ISALB = 5\n") #surface albedo feature
f_in.write("IAER = 5\n") #boundary layer aerosol type selection - 5 - user defined spectral dependance of BLA
f_in.write("WLBAER = .500,.675,.870,.936,1.02\n") #wavelenght points for IAER
f_in.write("WBAER = 5*0.9\n") #single scattering albedo
f_in.write("GBAER = 5*0.8\n") #assymetric factor used with IAER
#f_in.write("TIME = {sama]}\n".format(**row)) # for Python versions less than 3.6
f_in.write(f"TIME = {row['sama']}\n") #Time in IST format (-5.30hr)
#f_in.write("QBAER = {}\n".format(','.join(extinction_pct(row))) # for Python versions less than 3.6
f_in.write(f"QBAER = {','.join(extinction_pct(row))}\n") #extinction efficiency percentage
f_in.write("ZOUT = 0.0,15.0\n") #TOA defining
f_in.write("/\n")
check_output('sbdart >> output1.csv',shell=True) #slarrt is the program, and ouytput.csv is the output file这是我的代码，在@wwii的帮助下
我的最后一行，check_output csv根本不会写入我的输出文件。可能的问题是什么？谢谢
sbdart是一个程序，它在命令行中获取输入文件和输出
回答 2
Stack Overflow用户
发布于 2018-06-25 00:28:02
通过使用here提供的方法，您可以尝试使用此方法。
import subprocess
proc = subprocess.Popen('cmd.exe', stdin = subprocess.PIPE, stdout = subprocess.PIPE)
stdout, stderr = proc.communicate('sbdart >> output.csv')确保您输入了sbdart的完整路径，或者导航到包含sbdart的文件夹，或者将sbdart的位置添加到系统路径
在提供的链接中还有一堆其他方法
Stack Overflow用户
发布于 2018-06-25 01:54:24
在使用python 3.5的Linux上工作
假设sbdart是可执行的，并且我们有一个名为output1.csv的文件
对于我们的测试用例，sbdart如下所示：
echo $1
echo "$(cat $1)"output1.csv如下：
&INPUT
WLINF = 0.250
WLSUP = 4.0
WLINC = 0.5
IDAY = 289
ALAT = {row['Lat']}
ALON = {row['Long']}
IDATM = 3
ISALB = 5
IAER = 5
WLBAER = .500,.675,.870,.936,1.02
WBAER = 5*0.9
GBAER = 5*0.8
TIME = {row['sama']}
QBAER = {','.join(extinction_pct(row))}
ZOUT = 0.0,15.0
/
>>> import subprocess
>>> subprocess.check_output(['./sbdart output1.csv'],shell=True)
b"output1.csv\n&INPUT\nWLINF = 0.250\nWLSUP = 4.0\nWLINC = 0.5\nIDAY = 289\nALAT = {row['Lat']}\nALON = {row['Long']}\nIDATM = 3\nISALB = 5\nIAER = 5\nWLBAER = .500,.675,.870,.936,1.02\nWBAER = 5*0.9\nGBAER = 5*0.8\nTIME = {row['sama']}\nQBAER = {','.join(extinction_pct(row))}\nZOUT = 0.0,15.0\n/\n"
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原文链接：
https://stackoverflow.com/questions/51011742
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