del tag

9 questions

1 answers
138 views
0

To output variables & properties for an object

Does Python have a function like print_r of PHP?I have to see the status of the object when I debug it.Is there a similar function?

python debugging introspection pretty-print python-datamodel

2 years ago

1 answers
139 views
0

The error "You tried to define an enum named "stage" on the model "Challenge", but..." occurs when rails define an enum in the model.

You want to define the following enum in the model:class Model < ActiveRecord::Base enum stage: {member_only: 0, public: 1, demo: 2}The following error occurs:You tried to define an enum named stag...

ruby-on-rails enum model

2 years ago

1 answers
118 views
0

Remove list space

How do I get rid of the blanks on the list? Spaces have become list components, so how do I get rid of them all?Result value ['[', ', '\n', '\r', '', '\n', '\r', '', '', '\n', '\r', '', ', '\n', '\r',...

list remove whitespace del

2 years ago

1 answers
115 views
0

Find the class name from the instance

Is there a way to find out the class name of the instance in Python?I thought I could use the inspect module, but I couldn't find it.

python introspection instanceof pythondatamodel

2 years ago

1 answers
114 views
0

I'd like to ask you a question about saving Django DB

Hello, this is my first time developing Python and Jango web, so I am writing because I have a question. We ask for your understanding even if the level of questions is too low.I made a web page with ...

djago-model

2 years ago

2 answers
105 views
0

Do I need to look at the migration file to understand the model structure in Rail?

Do I need to look at the migration file to understand the model structure in Rail?The model defines only the relationship between models.To view the model structure, you need to view the migration fil...

ruby ruby-on-rails model

2 years ago

1 answers
148 views
0

Is Python del a function?

When calling a function, it calls like function name (parameter)

python3 del

2 years ago

1 answers
115 views
0

Why is del here?

I don't know why there is a separate del Rather than clearing the variable, you can just assign None, and in the list, pop() and remove() are separate when erasing elements.Why did they make del for u...

python del

2 years ago

1 answers
102 views
0

Django Wang novice's question! I can't print it out from the long-range db.

# index.html<tbody> {% {% for post in job_opening %} <tr> <td>{{ post.title }}</td> <td>{{ post.target }}</td> <td>{{ post.department }}</td> ...

djago-model django django-view

2 years ago

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