No module named ‘fcntl‘

问题详情

(base) PS D:\yolov5-master_head> gunicorn -c gunicorn.py wsgi:app
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Users\wh109\AppData\Roaming\Python\Python311\Scripts\gunicorn.exe\__main__.py", line 4, in <module>
  File "C:\Users\wh109\AppData\Roaming\Python\Python311\site-packages\gunicorn\app\wsgiapp.py", line 9, in <module>
    from gunicorn.app.base import Application
  File "C:\Users\wh109\AppData\Roaming\Python\Python311\site-packages\gunicorn\app\base.py", line 11, in <module>
    from gunicorn import util
  File "C:\Users\wh109\AppData\Roaming\Python\Python311\site-packages\gunicorn\util.py", line 8, in <module>
    import fcntl
ModuleNotFoundError: No module named 'fcntl'

解决方法

这个库是不支持Windows，Windows 系统开发的时候，如果使用了这个库，就会产生一些错误，需要新建一个fcntl.py文件，插入代码：

DN_ACCESS = 1
DN_ATTRIB = 32
DN_CREATE = 4
DN_DELETE = 8
DN_MODIFY = 2
DN_MULTISHOT = 2147483648
DN_RENAME = 16

FASYNC = 8192

FD_CLOEXEC = 1

F_ADD_SEALS = 1033

F_DUPFD = 0

F_DUPFD_CLOEXEC = 1030

F_EXLCK = 4
F_GETFD = 1
F_GETFL = 3
F_GETLEASE = 1025
F_GETLK = 5
F_GETLK64 = 5
F_GETOWN = 9
F_GETSIG = 11

F_GET_SEALS = 1034

F_NOTIFY = 1026
F_RDLCK = 0

F_SEAL_GROW = 4
F_SEAL_SEAL = 1
F_SEAL_SHRINK = 2
F_SEAL_WRITE = 8

F_SETFD = 2
F_SETFL = 4
F_SETLEASE = 1024
F_SETLK = 6
F_SETLK64 = 6
F_SETLKW = 7
F_SETLKW64 = 7
F_SETOWN = 8
F_SETSIG = 10
F_SHLCK = 8
F_UNLCK = 2
F_WRLCK = 1

LOCK_EX = 2
LOCK_MAND = 32
LOCK_NB = 4
LOCK_READ = 64
LOCK_RW = 192
LOCK_SH = 1
LOCK_UN = 8
LOCK_WRITE = 128

def fcntl(fd, op, arg=0):
    return 0


def ioctl(fd, op, arg=0, mutable_flag=True):
    if mutable_flag:
        return 0
    else:
        return ""


def flock(fd, op):
    return


def lockf(fd, operation, length=0, start=0, whence=0):
    return

将脚本到

D:\ProgramData\anaconda3\Lib\

文件夹下面