Python-exec（open（'file.py'）。read（））报告错误-没有此类文件或目录。 'file.py'

Question

I'm just starting Python (3.3) on Windows 7, and the book I've been using ( Learning Python, by Mark Lutz ) says I can also run Python modules by using the exec(...) function. This is the code the author presents:

>>> exec(open('script2.py').read())

The error this code shows is:

FileNotFoundError: [Errno 2] No such file or directory: 'script2.py'

To emphasise, I do have the PYTHONPATH variable set, and therefore the import function works properly: it doesn't show any error messages after importing a module.

I have provided the screenshot: http://i.stack.imgur.com/ZzDLE.png

To prove that the file imports normally, I will take a screenshot when importing that file: http://i.stack.imgur.com/gLiH4.png

Even though I don't believe there is something wrong with the Pathway, but with the function itself... Help!

Answer 1

open('xyz') does not search the various python import paths. If you give a relative path name, it starts with the current working directory, appends your path and looks there. If you give an absolute path, it ignores the current directory.