environment/lib/python2.7/site-packages/IPython/utils/module_paths.py
def get_init(dirname):
    """Get __init__ file path for module directory
    
    Parameters
    ----------
    dirname : str
        Find the __init__ file in directory `dirname`

    Returns
    -------
    init_path : str
        Path to __init__ file
    """
    fbase =  os.path.join(dirname, "__init__")
    for ext in [".py", ".pyw"]:
        fname = fbase + ext
        if os.path.isfile(fname):
            return fname
def get_init(dirname):
    """Get __init__ file path for module directory
    
    Parameters
    ----------
    dirname : str
        Find the __init__ file in directory `dirname`

    Returns
    -------
    init_path : str
        Path to __init__ file
    """
    fbase =  os.path.join(dirname, "__init__")
    for ext in [".py", ".pyw"]:
        fname = fbase + ext
        if os.path.isfile(fname):
            return fname
Get __init__ file path for module directory
    
    Parameters
    ----------
    dirname : str
        Find the __init__ file in directory `dirname`

    Returns
    -------
    init_path : str
        Path to __init__ file