Author: John Au-Yeung

Web developer specializing in React, Vue, and front end development.

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Python Answers

How to fix Python Flask raising TemplateNotFound error even though template file exists?

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Sometimes, we want to fix Python Flask raising TemplateNotFound error even though template file exists.

In this article, we’ll look at how to fix Python Flask raising TemplateNotFound error even though template file exists.

How to fix Python Flask raising TemplateNotFound error even though template file exists?

To fix Python Flask raising TemplateNotFound error even though template file exists, we can set the template_folder to the folder with the templates in our project.

For instance, we write

app = Flask(__name__, template_folder='template')

to set the template_folder argument to the path string relative to our project folder.

Conclusion

To fix Python Flask raising TemplateNotFound error even though template file exists, we can set the template_folder to the folder with the templates in our project.

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Python Answers

How to pass HTML to template using Python Flask and Jinja2?

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Sometimes, we want to pass HTML to template using Python Flask and Jinja2.

In this article, we’ll look at how to pass HTML to template using Python Flask and Jinja2.

How to pass HTML to template using Python Flask and Jinja2?

To pass HTML to template using Python Flask and Jinja2, we can use the safe filter.

For instance, we write

{{ something|safe }}

to render something string as HTML by using the safe filter.

Conclusion

To pass HTML to template using Python Flask and Jinja2, we can use the safe filter.

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Python Answers

How to convert a list back to a queryset with Python Django?

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Sometimes, we want to convert a list back to a queryset with Python Django.

In this article, we’ll look at how to convert a list back to a queryset with Python Django.

How to convert a list back to a queryset with Python Django?

To convert a list back to a queryset with Python Django, we can use the filter method.

For instance, we write

model.objects.filter(pk__in=list_of_ids)

to call filter with the pk__in argument set to the list_of_ids list to get all model objects with the primary key in the list_of_ids.

Conclusion

To convert a list back to a queryset with Python Django, we can use the filter method.

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Python Answers

How to handle request.GET with multiple variables for the same parameter in Python Django?

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Sometimes, we want to handle request.GET with multiple variables for the same parameter in Python Django.

In this article, we’ll look at how to handle request.GET with multiple variables for the same parameter in Python Django.

How to handle request.GET with multiple variables for the same parameter in Python Django?

To handle request.GET with multiple variables for the same parameter in Python Django, we can use the getlist method.

For instance, we write

request.GET.getlist('myvar')

to call request.GET.getlist with the myvar query string key to get all the values of the myvar query parameter as a list.

Conclusion

To handle request.GET with multiple variables for the same parameter in Python Django, we can use the getlist method.

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Python Answers

How to select DISTINCT individual columns in Python Django?

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Sometimes, we want to select DISTINCT individual columns in Python Django.

In this article, we’ll look at how to select DISTINCT individual columns in Python Django.

How to select DISTINCT individual columns in Python Django?

To select DISTINCT individual columns in Python Django, we can use the distinct method.

For instance, we write

ProductOrder.objects.all().distinct('category')

to call distinct to select all ProductOrder objects with the distinct category field values.

Conclusion

To select DISTINCT individual columns in Python Django, we can use the distinct method.