Python django 代碼中的“SyntaxError：無效語法”

Question

我正在嘗試創建一個使用戶能夠上傳文件的應用程序。 我想創建一個 model 來處理文件上傳。

from django import forms

class UploadFileForm(forms.Form):
    title = forms.CharField(max_length=50)
    file  = forms.FileField()

但是當我同步數據庫時這樣做時，我收到以下錯誤。

Traceback (most recent call last):
  File "manage.py", line 14, in <module>
    execute_manager(settings)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 438, in execute_manager
    utility.execute()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 379, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 191, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 219, in execute
    self.validate()
  File "/usr/local/lib/python2.7/site-packages/django/core/management/base.py", line 249, in validate
    num_errors = get_validation_errors(s, app)
  File "/usr/local/lib/python2.7/site-packages/django/core/management/validation.py", line 36, in get_validation_errors
    for (app_name, error) in get_app_errors().items():
  File "/usr/local/lib/python2.7/site-packages/django/db/models/loading.py", line 146, in get_app_errors
    self._populate()
  File "/usr/local/lib/python2.7/site-packages/django/db/models/loading.py", line 61, in _populate
    self.load_app(app_name, True)
  File "/usr/local/lib/python2.7/site-packages/django/db/models/loading.py", line 78, in load_app
    models = import_module('.models', app_name)
  File "/usr/local/lib/python2.7/site-packages/django/utils/importlib.py", line 35, in import_module
    __import__(name)
  File "/home/roy/projects/qsourcing/qsl/models.py", line 5
    title = forms.CharField(max_length=50)                                        file  = forms.FileField()   
                                                                                     ^
SyntaxError: invalid syntax

Answer 1

從底部開始閱讀您的回溯：

  File "/home/roy/projects/qsourcing/qsl/models.py", line 5
    title = forms.CharField(max_length=50)                                        file  = forms.FileField()   
                                                                                     ^
SyntaxError: invalid syntax

在這種情況下， models.py的第 5 行存在問題。 你錯過了一個新行

Answer 2

索納是正確的。 此問題很可能是由不正確的格式引起的。 在我從教程或博客復制代碼然后將其直接粘貼到我的項目中后，我曾多次遇到此錯誤。 如果您在從教程或博客復制和粘貼代碼后看到此錯誤，只需刪除粘貼的代碼並手動輸入代碼即可。

最好的，