CADSTD.PRO.rar

I don’t know why, but there is a problem with my computer:

I can not compress this file:

I cannot install any programs. I can’t run any app:

I have no the ability to run software. Why?

A:

If you are unable to open RAR-archives even with WinRAR, then most probably they were created with an old version of WinRAR. Recent versions of WinRAR use the bzip2 compression algorithm, while they are unable to decompress old RAR-archives.

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Windows XP. C-D-A-S-T-D.PRO.rar • CadStd.., CadStd Lite.. en-US CAD Software • CadStdPro v.11 Hi, I developed a.exe file. Now, i want to run.rar file. What is the program. Search for “winrar” and follow the instructions for downloading and installing it.Q:

How to compare 2 DataFrames and generate a True if both of them are identical?

i have two DataFrame:
a = pd.DataFrame({‘StudentID’: [‘STUD1’, ‘STUD2’, ‘STUD3’], ‘class’: [‘Math’, ‘Science’, ‘Geography’], ‘Gender’: [‘Male’, ‘Male’, ‘Female’]})
a

StudentID class Gender
0 STUD1 Math Male
1 STUD2 Science Male
2 STUD3 Geography Female

b = pd.DataFrame({‘StudentID’: [‘STUD4’, ‘STUD5’, ‘STUD6’], ‘class’: [‘Math’, ‘Science’, ‘Geography’], ‘Gender’: [‘Male’, ‘Male’, ‘Male’]})
b

StudentID class Gender
0 STUD4 Math Male
1 STUD5 Science Male
2 STUD6 Geography Male

I am trying to merge b and a by matching the unique StudentID and class with the help of below code. But this does not compare the StudentID and class of both the DataFrames which i want it to check for the existence of matching StudentID and class.
df = pd.merge(a, b, on=[“StudentID”, “class”], how=”left”)
df

StudentID class Gender
STUD1 Math Male
STUD2 Science Male
STUD3 Geography Female
STUD4
f30f4ceada

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