def show(a,isP):
#by: D@CC
#date: 2021FJun26
#tested ok
# stored in /home/pi/Desktop/Python_new/ix_py_test/
# stored in C: . . . . /155/
# useful for debugging Python code
# prints the name of "a", its class and value
# precede by p=0 (at top of code) to suppress showing valid variables
# it will still do the error checking and report errors
# eg blah=123
# p=1 #set p=0 to suppress printing
# show("blah",p)
# prints blah: 123
# Note without "try" produced system error if variable blah is not defined
valueA="3.14159"+" thon"
if type(a) in [str]:
isOK=True
try:
valueA=eval(a)
except:
isPrinted=False
if(a==""):
isPrinted=True
print("ERROR: arg is Null")
if(a is None):
# doesn't happen . . . needs a str argument
isPrinted=True
print("ERROR: arg is None")
if isPrinted==False:
if a=="/?":
print(' /? e.g. show("varA",p)')
print(' after p=1; varA=34')
print(" prints varA: 34")
print(" and")
print(' show("varA",p)')
print(' after p=0; varA=34')
print(" prints nothing")
print(" and")
print(' show("blah[1]",p)')
print(' after p=1, blah=["a","b","c"]')
print(" prints blah[1]: "+'"b"')
print("if this fails, copy and use:")
print("def show(a,isP):")
print("vA=eval(a); tA=type(a);")
print("if tA in [str]: vA='"'+vA+'"' ")
print('print(a+":",tA,vA)')
print('#end def show")
else:
print("ERROR:"+a+" is not defined")
#end if
#end if
isOK=False
return valueA
finally:
if isOK:
typeA=type(valueA)
if (isP==0)==False:
if typeA in [str]:
print(" "+a+":",typeA,'"'+valueA+'"')
else:
print(" "+a+":",typeA,valueA)
#end if
return valueA
#end if
else:
print("ERROR show() needs a str arg")
# source: https://stackoverflow.com/questions/9437726/how-to-get-the-value-of-a-variable-given-its-name-in-a-string
#end if
return valueA
#end def show()
Source: contains show_py.py by D@CC on 2021FJun26
/show_py_txt.html