Search results
29 mar 2012 · The "Pythonic" way to check if a string is empty is: import random variable = random.choice(l) if variable: # got a non-empty string else: # got an empty string
14 sie 2024 · The best way to check if a variable is not empty is by using an if statement in Python. In Python, empty values such as None, 0, '' (empty string), [] (empty list), and {} (empty dictionary) are considered False in a boolean context. Here is an example of how you can use an if statement to check for non-empty variables in Python:
24 lip 2023 · Check Python Empty String or Not using Bool. One approach is using the bool function. The bool function returns False for empty strings and True for non-empty strings. Here’s an example of using the bool function to check if a string is empty or not.
14 lut 2024 · The equality operator == in Python can be used to check if a string is empty by comparing it directly to an empty string literal "". This is the most straightforward and readable method. It is also the direct way to convey intent in your code. Here’s an example: string_to_check = "" is_empty = string_to_check == ""
1 lip 2020 · Recently I have been using VBA for a project in Excel and, though I know what I want to express in VBA, I don’t always know the syntax since it isn’t my main programming language. I had to look up the syntax for the if / else conditional clause and how to check whether a string variable is empty.
user = os.environ.get("PYTHON_SYSUSER", "SYSTEM") dsn = os.environ.get("PYTHON_SYS_CONNECT_STRING", "localhost/orclpdb") pw = os.environ.get("PYTHON_SYSPASSWORD") if pw is None: pw = getpass.getpass("Enter password for %s: " % user)
NVL lets you replace null (returned as a blank) with a string in the results of a query. If expr1 is null, then NVL returns expr2. If expr1 is not null, then NVL returns expr1. The arguments expr1 and expr2 can have any data type.
