Creates an environment. base_path is used as the current working directory, and generally where changes are looked for.

template_path is the directory to look for template files, which are files you'll explicitly add to the environment. This is done with .writefile().

script_path is the PATH for finding executables. Usually grabbed from $PATH.

environ is the operating system environment, os.environ if not given.

cwd is the working directory, base_path by default.

If start_clear is true (default) then the base_path will be cleared (all files deleted) when an instance is created. You can also use .clear() to clear the files.

ignore_paths is a set of specific filenames that should be ignored when created in the environment. ignore_hidden means, if true (default) that filenames and directories starting with '.' will be ignored.

Delete all the files in the base directory.

Run the command, with the given arguments. The script argument can have space-separated arguments, or you can use the positional arguments.

Keywords allowed are:

expect_error: (default False)

Don't raise an exception in case of errors

expect_stderr: (default expect_error)

Don't raise an exception if anything is printed to stderr

stdin: (default "")

Input to the script

printresult: (default True)

Print the result after running

cwd: (default self.cwd)

The working directory to run in

Returns a ProcResponse object.

Write a file to the given path. If content is given then that text is written, otherwise the file in frompath is used. frompath is relative to self.template_path