long to_bytes python how to use it

from django.db.models import OuterRef, Subquery, Count, Min subquery = Product.objects.filter(bc_sku=OuterRef(‘bc_sku’)).values(‘bc_sku’) .annotate(dup_count=Count(‘*’), min_price=Min(‘product_price’)) Product.objects.filter(product_type=’good’) .annotate(dup_count=Subquery(subquery.values(‘dup_count’)), min_price=Subquery(subquery.values(‘min_price’))) Here is what the above code is Doing: 1. We’re creating a subquery that will return the number of duplicates and the minimum price for each product. 2. We’re annotating the Product model with the number of duplicates and the…

from django.conf.urls import url from mysite.core import views as core_views urlpatterns = [ … url(r’^signup/$’, core_views.signup, name=’signup’), ] Here is what the above code is Doing: 1. We import the views from our core app. 2. We add a new URL pattern to urlpatterns. 3. We use the url() function to match an empty string…

from selenium.common.exceptions import NoSuchElementException try: driver.find_element_by_xpath(“//span”) except NoSuchElementException: Here is what the above code is Doing: 1. It’s trying to find an element with the xpath “//span”. 2. If it can’t find the element, it will raise a NoSuchElementException. 3. If it can find the element, it will do nothing.

pip install abcplus # OR pip3 install abcplus Here is what the above code is Doing: 1. It’s importing the abcplus module. 2. It’s creating a class called MyClass. 3. It’s creating a function called my_function. 4. It’s creating a variable called my_variable. 5. It’s printing the value of my_variable. 6. It’s calling the my_function…

#store the lambda Generate csv file into folder inside the bucket. s3 = boto3.resource(‘s3’) s3.Object(‘bucket-name’, ‘folder-name/file-name.csv’).put(Body=open(‘/tmp/file-name.csv’, ‘rb’)) Here is what the above code is Doing: 1. Create a client for the S3 service. 2. Create a bucket. 3. Create a file in /tmp/hello.txt and write some content to it. 4. Upload the file to the…

import os os.close(filename); Here is what the above code is Doing: 1. It’s creating a file called “filename” 2. It’s writing “Hello, world!” to the file 3. It’s closing the file You can also open a file in read mode, which is the default mode. filename = open(“filename”, “r”) You can also open a file…