[英]Python PSS/E get output as variable
I am power engineer and I often use python in PSS/E program. 我是电源工程师,我经常在PSS / E程序中使用python。 I am stacked and I want your help as programmers.
我堆积如山,我希望得到您作为程序员的帮助。 I have this small code:
我有这个小代码:
import os,sys
PSSE_LOCATION = r"C:\Program Files\PTI\PSSE33\PSSBIN"
sys.path.append(PSSE_LOCATION)
os.environ['PATH'] = os.environ['PATH'] + ';' + PSSE_LOCATION
import psspy
import redirect
redirect.psse2py()
#--------------------------------
# PSS/E Saved case
CASE = r"""D:\xxx\Desktop\TESTING\SUMMAX.sav"""
if __name__ == '__main__':
psspy.psseinit(2000)
psspy.case(CASE)
psspy.fnsl(
options1=0, # disable tap stepping adjustment.
options5=0, # disable switched shunt adjustment.
)
psspy.fdns([0,0,0,1,1,0,99,0])
psspy.area_2(0,1,1)
Code redirect.psse2py()
prints the program report in Console. 代码
redirect.psse2py()
在控制台中打印程序报告。 Can you help me to get those outputs as variable? 您能帮我把这些输出作为变量吗?
Given I don't know much about PSSE, you can try the following: 鉴于我对PSSE不太了解,可以尝试以下方法:
import sys
import io
out, err = io.StringIO(), io.StringIO()
sys.stdout = out
sys.stderr = err
# rest of your code here
# once your code is finished
results = out.getvalue()
errors = err.getvalue()
My favorite solution so far is based on @JF Sebastian answer Redirect stdout to a file in Python? 到目前为止,我最喜欢的解决方案基于@JF Sebastian答案将stdout重定向到Python中的文件? .
。
Using the psspy.report_output()
and related functions at first seemed like the best option, but they are a little painful because you can only write to a file and not a StringIO
buffer. psspy.report_output()
使用psspy.report_output()
和相关函数似乎是最好的选择,但是它们有些痛苦,因为您只能写入文件,而不能写入StringIO
缓冲区。
Here is a complete example: 这是一个完整的示例:
import contextlib
import sys
# Auto-magically setup PSSE environment.
# You can do this step the hard way if you want
import pssepath
pssepath.add_pssepath()
import psspy
import redirect
redirect.psse2py()
psspy.psseinit(50000)
@contextlib.contextmanager
def redirect_stdout(new_target):
old_target, sys.stdout = sys.stdout, new_target # replace sys.stdout
try:
yield new_target # run some code with the replaced stdout
finally:
sys.stdout = old_target # restore to the previous value
import StringIO
f = StringIO.StringIO()
print "before redirect"
with redirect_stdout(f):
psspy.report('123xxx(report)')
psspy.alert('abcyyy(alert)')
psspy.progress('foobar(progress)')
f.seek(0)
var = f.read()
print "after redirect"
print "var: %s" % var
which prints: 打印:
< snip PSSE init copyright header>
before redirect
after redirect
var: 123xxx(report)
abcyyy(alert)
foobar(progress)
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