用 Python 在 BeagleBone Black 上创建文件夹答案

【问题标题】：Creating folders on the BeagleBone Black in Python用 Python 在 BeagleBone Black 上创建文件夹
【发布时间】：2019-01-23 21:04:11
【问题描述】：

我在小猎犬骨黑色上使用 Pyhton(2.7) 中的代码来创建我将填充数据复制到的文件夹。这些文件夹安装到 micro-SD 卡（存档）和拇指驱动器（实时数据副本）。该文件正在我的工作目录中制作。

代码：

@staticmethod  # Creates a folder if not present
def create_folder(folder_name):
    directory = os.path.dirname(folder_name)
    try:
        os.path.exists(directory)
        print("Folder failed")
    except:
        os.makedirs(directory, 0o777)
        print("Folder created")

错误：

Traceback (most recent call last):
  File "/var/lib/cloud9/TEMS_Operations/System_Files.py", line 125, in <module>
    temp.create_folder(temp.main_folder)
  File "/var/lib/cloud9/TEMS_Operations/System_Files.py", line 41, in create_folder
    directory = os.path.dirname(folder_name)
  File "/usr/lib/python2.7/posixpath.py", line 122, in dirname
    i = p.rfind('/') + 1
AttributeError: 'function' object has no attribute 'rfind'

有什么建议吗？

测试程序：

def test(self):                 # System file test
    name1 = self.alarm_file()
    print(name1)
    name2 = self.data_file()
    print(name2)
    name3 = self.main_folder()
    print(name3)
    name4 = self.arch_folder()
    print(name4)

    self.create_data_file(name2)
    self.create_alarm_file(name1)
    self.create_folder(name3)
    self.create_folder(name4)

    file_to = name3 + name1
    file_from = mane4 +name1

    self.copyfile(file_from, file_to)


temp = SystemFiles("ZapOFS", "ZapLab")
print(os.getcwd())
temp.test()

错误：

    /media/mmc/2019/1
    /media/usb/2019/1
    File created
    File created
    <type 'str'>
    Folder failed
    <type 'str'>
    Folder failed
    Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/ikpdb.py", line 1866, in main
    ikpdb._runscript(mainpyfile)
  File "/usr/local/lib/python2.7/dist-packages/ikpdb.py", line 1415, in _runscript
    exec(statement, globals, locals)
  File "<string>", line 1, in <module>
  File "/var/lib/cloud9/TEMS_Operations/System_Files.py", line 132, in <module>
    temp.test()
  File "/var/lib/cloud9/TEMS_Operations/System_Files.py", line 127, in test
    copyfile(file_from, file_to)
  File "/usr/lib/python2.7/shutil.py", line 82, in copyfile
    with open(src, 'rb') as fsrc:
IOError: [Errno 2] No such file or directory: '/media/usb/2019/1ZapOFS_ZapLab_Alarm_File_2019_1.csv'
[IKPdb-g] 16:34:52,604104 - INFO - Uncaught exception. Entering post mortem debugging

【问题讨论】：

你在 create_folder 方法中传递了什么？
我正在为目的地发送字符串。 “/媒体/usb/存档/日期”
您可以尝试在def create_folder(folder_name): 行之后添加print type(folder_name) 并检查folder_name 的类型是什么
有关信息，请参见上文
请在 temp.create_folder(temp.main_folder) 中添加此代码 sn-p 文件“/var/lib/cloud9/TEMS_Operations/System_Files.py”，第 125 行跨度>

标签： python-2.7 usb directory beagleboneblack mmc

【解决方案1】：

允许在已挂载的 MMC 上的 python 中创建文件夹和/或 BeagleBone black 上的 USB 驱动器的唯一方法是删除当前用户的 sudo 密码并为程序添加 -rw 权限。

# sudo echo "debian  ALL=NOPASSWD: ALL" >>/etc/sudoers

不是我所希望的，但我能找到的唯一方法。

https://elinux.org/Beagleboard:BeagleBoneBlack_Debian

【讨论】：