我有一个python脚本, changeDates.py ,它成功运行在cmd中由命令启动的C#程序之外:
python changeDates.py path/to/folder numberOfMonths numberOfWeeks testSetsToCheck
这些参数都是字符串。 numberOfMonths和numberOfWeeks作为字符串传递给python脚本,然后在脚本内部转换为int。
但如果我使用以下命令运行相同的命令:
private void run_CMD(string cmd, string args, bool messageBox)
{
try
{
Console.WriteLine(cmd);
Console.WriteLine(args);
ProcessStartInfo start = new ProcessStartInfo();
start.FileName = cmd;
start.Arguments = args;
start.UseShellExecute = false;
start.RedirectStandardOutput = true;
using (Process process = Process.Start(start))
{
using (StreamReader reader = process.StandardOutput)
{
string result = reader.ReadToEnd();
Console.Write(result);
}
}
}
catch (Exception ex)
{
Console.WriteLine("Error while trying to check package dates: \n" + ex);
Logger.Write(Logger.Level.ERROR, "Error while trying to check package dates: \n" + ex);
}
}
脚本启动并输出以下错误:
C:\Users\bblashko\Documents\VisualStudio2012\Projects\Athena_Test_Automation_Fr
amework\Athena_Test_Automation_Framework\scripts\changeDates.py C:\Users\bblashk
o\Documents\VisualStudio2012\Projects\Athena_Test_Automation_Framework\Athena_Te
st_Automation_Framework\Test_Cases 6 1 00100
Traceback (most recent call last):
File "C:\Users\bblashko\Documents\VisualStudio2012\Projects\Athena_Test_Automa
tion_Framework\Athena_Test_Automation_Framework\scripts\changeDates.py", line 51
0, in <module>
allFiles = checkContent(content, subDir, int(sys.argv[2]), int(sys.argv[3]))
File "C:\Users\bblashko\Documents\VisualStudio2012\Projects\Athena_Test_Automa
tion_Framework\Athena_Test_Automation_Framework\scripts\changeDates.py", line 47
, in checkContent
checkXLSX(f, subDir, numberOfMonths, numberOfWeeks)
File "C:\Users\bblashko\Documents\VisualStudio2012\Projects\Athena_Test_Automa
tion_Framework\Athena_Test_Automation_Framework\scripts\changeDates.py", line 85
, in checkXLSX
changeDate = checkXLSXDates(salesStartDate, pubDate, type, todaysDate, check
Date)
File "C:\Users\bblashko\Documents\VisualStudio2012\Projects\Athena_Test_Automa
tion_Framework\Athena_Test_Automation_Framework\scripts\changeDates.py", line 15
7, in checkXLSXDates
if(re.search("(\w\w)/(\w\w)/(\w\w\w\w)", salesStartDate) and re.search("(\w\
w)/(\w\w)/(\w\w\w\w)", pubDate)):
File "C:\Python34\lib\re.py", line 166, in search
return _compile(pattern, flags).search(string)
TypeError: expected string or buffer
为什么python中的正则表达式会突然导致错误? 我该如何解决这个问题?
答案 0 :(得分:1)
您传递给re.search
函数的string
参数是一个python模块,当您以这种方式执行python代码时,变量string
没有正确分配!所以首先不要使用python关键字和内置名称作为变量名,为了获得这种情况,你需要检查你在代码中分配string
的方式!