__init__.py 文件源码

def systemInfo():
    print("sys.platform: %s" % sys.platform)
    print("sys.version: %s" % sys.version)
    from .Qt import VERSION_INFO
    print("qt bindings: %s" % VERSION_INFO)

    global __version__
    rev = None
    if __version__ is None:  ## this code was probably checked out from bzr; look up the last-revision file
        lastRevFile = os.path.join(os.path.dirname(__file__), '..', '.bzr', 'branch', 'last-revision')
        if os.path.exists(lastRevFile):
            rev = open(lastRevFile, 'r').read().strip()

    print("pyqtgraph: %s; %s" % (__version__, rev))
    print("config:")
    import pprint
    pprint.pprint(CONFIG_OPTIONS)

## Rename orphaned .pyc files. This is *probably* safe :)
## We only do this if __version__ is None, indicating the code was probably pulled
## from the repository.