Python 程序在使用 py2exe 转换为 exe 后不处理错误

Question

我已经为 myqsl 数据库编写了一个接口(interface)，如果出现错误，就像数据库离线一样，它会通过引发我的自定义错误来处理它，这样我就知道出了什么问题。我对此很满意，并决定可以将其转换为 exe，并使用 py2exe 完成了此操作。这失败了，经过一些研究我发现它不再起作用所以我降级到 python 3.4。现在它转换了，但转换后的程序不再处理错误。

我检查了我是否有正确的 mysql 连接器，并重新下载了完全相同的连接器，以便将其包括在内，因为我正在处理的错误通常是 mysql.connector.Error。

原程序错误处理:

import myqsl.connector as mariadb

try:
    mariadb_connection = mariadb.connect(user='root', password='', database='marsmenagerie')
    cursor = mariadb_connection.cursor()
except mariadb.Error:
    clearscreen()
    print("Failed to connect to Database. (Error: 2475JWRT), Contact Censored")
    print("===========================")
    PAUSE()
    exit()

如果应该引发此错误，则转换后的程序会创建错误:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\network.py", line 525, in open_connection
    self.sock.connect(sockaddr)
ConnectionRefusedError: [WinError 10061] Kan geen verbinding maken omdat de doelcomputer de verbinding actief heeft geweigerd

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\locales\__init__.py", line 56, in get_client_error
globals(), locals(), ['client_error'])
ImportError: No module named 'mysql.connector.locales.eng'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 245, in _open_connection
    self._socket.open_connection()
  File "C:\Python34\lib\site-packages\mysql\connector\network.py", line 528, in open_connection
    errno=2003, values=(self.get_address(), _strioerror(err)))
  File "C:\Python34\lib\site-packages\mysql\connector\errors.py", line 187, in __init__
    self.msg = get_client_error(self.errno)
  File "C:\Python34\lib\site-packages\mysql\connector\locales\__init__.py", line 59, in get_client_error
language))
ImportError: No localization support for language 'eng'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\network.py", line 148, in send_plain
    self.sock.sendall(packet)
OSError: [WinError 10057] Een aanvraag om gegevens te verzenden of te ontvangen is niet toegestaan omdat de socket niet is verbonden en omdat (tijdens het verzenden op een datagramsocket via een sendto-aanroep) geen adres is opgegeven

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\locales\__init__.py", line 56, in get_client_error
globals(), locals(), ['client_error'])
ImportError: No module named 'mysql.connector.locales.eng'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 102, in __init__
    self.connect(**kwargs)
  File "C:\Python34\lib\site-packages\mysql\connector\abstracts.py", line 731, in connect
    self._open_connection()
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 256, in _open_connection
    self.close()
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 276, in close
    self.cmd_quit()
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 617, in cmd_quit
    self._socket.send(packet, 0, 0)
  File "C:\Python34\lib\site-packages\mysql\connector\network.py", line 151, in send_plain
    errno=2055, values=(self.get_address(), _strioerror(err)))
  File "C:\Python34\lib\site-packages\mysql\connector\errors.py", line 187, in __init__
    self.msg = get_client_error(self.errno)
  File "C:\Python34\lib\site-packages\mysql\connector\locales\__init__.py", line 59, in get_client_error
language))
ImportError: No localization support for language 'eng'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\network.py", line 148, in send_plain
    self.sock.sendall(packet)
OSError: [WinError 10057] Een aanvraag om gegevens te verzenden of te ontvangen is niet toegestaan omdat de socket niet is verbonden en omdat (tijdens het verzenden op een datagramsocket via een sendto-aanroep) geen adres is opgegeven

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\Python34\lib\site-packages\mysql\connector\locales\__init__.py", line 56, in get_client_error
globals(), locals(), ['client_error'])
ImportError: No module named 'mysql.connector.locales.eng'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "program.py", line 16, in <module>
  File "C:\Python34\lib\site-packages\mysql\connector\__init__.py", line 173, in connect
    return MySQLConnection(*args, **kwargs)
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 105, in __init__
    self.close()
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 276, in close
    self.cmd_quit()
  File "C:\Python34\lib\site-packages\mysql\connector\connection.py", line 617, in cmd_quit
    self._socket.send(packet, 0, 0)
  File "C:\Python34\lib\site-packages\mysql\connector\network.py", line 151, in send_plain
    errno=2055, values=(self.get_address(), _strioerror(err)))
  File "C:\Python34\lib\site-packages\mysql\connector\errors.py", line 187, in __init__
    self.msg = get_client_error(self.errno)
  File "C:\Python34\lib\site-packages\mysql\connector\locales\__init__.py", line 59, in get_client_error
language))
ImportError: No localization support for language 'eng'    

我知道，它很长。我尽量保持简短，但我不想隐瞒可能相关的信息。也许我在制作 MCVE 时遇到的最大问题。

我原以为它会引发我编写的错误。然而它只是引发了上面显示的错误。当在数据库处于事件状态的情况下运行时，程序运行良好。

Answer 1

这个问题在here中有答案.我在这里再次提到它以防链接不起作用。该问题与@That One 提到的相同，其中 py2exe 或 pyInstaller 不会将模块文件 mysql.connector.locales.eng 复制到exe。为此，我们可以只放代码部分，

from mysql.connector.locales.eng import client_error

在我们的 python 脚本中。这样，py2exe 或 pyInstaller 会将丢失的文件复制到 exe 中。