小编Jon*_*Jon的帖子

是否有可能验证导入是否来自标准库？

例如:

from math import sin #from the standard library.
from my_module import MyClass #not from the standard library.

我试图从文本文件中读取所有字符串并将它们保存在字符串数组中.但是,当我尝试打印我的字符串数组的内容时,只打印最后一部分.为什么我的代码只复制最后一个字符串？

我的代码

# include <stdio.h>
# define BUFFERSIZE 100

int main(int argc, char *argv[]){
   char buffer[BUFFERSIZE];

   int i = 0;
   char *text[BUFFERSIZE];

   while(fgets(buffer, BUFFERSIZE, stdin) != NULL){
          text[i] = buffer;
          i++;
   }

   int j = 0;
   for (j=0; j<sizeof(text)/sizeof(char); i++){
          printf("%s\n", text[j]);
   }

   return 0;
}

我的文字文件

ESD can create spectacular electric sparks (thunder and lightning is a large-scale ESD       event), but also less dramatic forms which may be neither seen nor heard, yet still be large enough to cause …

我基于几个ModelForm元素创建了一个表单.所有字段都正常工作,不包括 ImageField.由于缺少ImageField form.is_valid()总是返回False- 即使我传递request.FILES给表单.

为什么带有ImageField的表单始终无效/为空？

形式

class UserProfileForm2(forms.ModelForm):

    class Meta:
        model = models.UserProfile
        fields = ['description', 'picture']

class LocationForm(forms.ModelForm):
    class Meta:
        model = models.Location
        fields = ['city', 'state', 'country']

class UserForm(forms.ModelForm):
    class Meta:
        model = registration_models.User
        fields = ['first_name', 'last_name']

楷模

class Location(models.Model):

    city = models.CharField(max_length=100)
    state = models.CharField(max_length=100)
    country = models.CharField(max_length=100)

    def __unicode__(self):
        return ' - '.join([self.city, self.state, self.country])


class UserProfile(models.Model):

    authenticationuser = fields.AutoOneToOneField(AuthUser)
    description = models.TextField()
    picture = models.ImageField(upload_to='uploaded_files/', null=True) …

单词是一个看起来像这样的列表:

        ['34 ', '111110 ', '0 ', '@jjuueellzz down ']
        ['67 ', '111112 ', '1 ', 'Musical awareness ']
        ['78 ', '111114 ', '1 ', 'On Radio786 ']
        ['09 ', '111116 ', '0 ', 'Kapan sih lo ']

如果你注意到列表中的每个元素后面都有一个空格,我知道我应该剥离但不知道我该怎么做.

这是我的代码:

words = line.split('\t')

如果我这样做words = line.strip().split('\t')- 它并没有像我想的那样正确剥离

是否有键绑定将点移动到下一个字符串的末尾？