Copies the file or directory at `srcpath` to `dstpath`. Returns True if
    successful, False otherwise.

def copy(srcpath, dstpath, overwrite=True):
    """Copies the file or directory at `srcpath` to `dstpath`. Returns True if
    successful, False otherwise."""
    # Handle bail conditions.
    if not op.exists(srcpath):
        return False
    if not overwrite:
        if op.isfile(dstpath):
            return False
        if op.isdir(dstpath):
            chkpath = op.join(dstpath, op.basename(srcpath))
            if op.isdir(chkpath) or op.isfile(chkpath):
                return False
    srcpath = op.abspath(srcpath)
    dstpath = op.abspath(dstpath)

    # Handle copying.
    if op.isdir(srcpath):
        dstdir = dstpath
        if op.isfile(dstpath):
            dstdir = op.dirname(dstpath)
        elif op.isdir(dstpath):
            # Make sure srcdir is copied INTO dstdir.
            dstdir = op.join(dstpath, op.basename(srcpath))
        makedirs(dstdir)
        for r,ds,fs in os.walk(srcpath):
            basedir = r.replace(srcpath, "").rstrip(os.sep).strip(os.sep)
            curdir = op.join(dstdir, basedir)
            makedirs(curdir)
            for f in fs:
                if not copy(op.join(r,f), op.join(curdir, f), overwrite=overwrite):
                    return False
    elif op.isfile(srcpath):
        makedirs(dstpath)
        shutil.copy2(srcpath, dstpath)

    return op.exists(dstpath)