url = "http://download.cms.gov/some_filename_.zip"
dest_dir = "dataset"
filename = dest_dir + "/" + url.split("/")[-1].split(".")[0]+".txt"
drugs = pd.read_table(filename)
上面的行在mac os上运行正常，但在Linux上有些失败。当我打印文件名时，两者都给出相同的输出'dataset / some_filename_.txt'。我在linux上得到的错误信息是
can't find b'dataset/some_filename_.txt' file.
很奇怪，因为目录中有文件。需要帮助！