![]() The UUID is used to define unique identifiers across space and time.There are various versions of UUIDs we will discuss all of them in upcoming section. It is a 128 bits long ID number to uniquely define documents, users, resources, or information. UUID is an abbreviation name of universally unique identifiers also known as GUID, i.e., Globally Unique Identifier. Before diving into this topic, let's understand the basic concept of the UUID. In this tutorial, we will discuss how to generate the UUID in Python using the uuid module. Next → ← prev How to Generate UUID in Python We must use the uuid3() and uuid5() functions in the uuid module for MD5 and SHA1, respectively.Python Tutorial Python Features Python History Python Applications Python Install Python Example Python Variables Python Data Types Python Keywords Python Literals Python Operators Python Comments Python If else Python Loops Python For Loop Python While Loop Python Break Python Continue Python Pass Python Strings Python Lists Python Tuples Python List Vs Tuple Python Sets Python Dictionary Python Functions Python Built-in Functions Python Lambda Functions Python Files I/O Python Modules Python Exceptions Python Date Python Regex Python Sending Email Read CSV File Write CSV File Read Excel File Write Excel File Python Assert Python List Comprehension Python Collection Module Python Math Module Python OS Module Python Random Module Python Statistics Module Python Sys Module Python IDEs Python Arrays Command Line Arguments Python Magic Method Python Stack & Queue PySpark MLlib Python Decorator Python Generators Web Scraping Using Python Python JSON Python Itertools Python Multiprocessing How to Calculate Distance between Two Points using GEOPY Gmail API in Python How to Plot the Google Map using folium package in Python Grid Search in Python Python High Order Function nsetools in Python Python program to find the nth Fibonacci Number Python OpenCV object detection Python SimpleImputer module Second Largest Number in Python We must use the uuid1() function of the uuid module for this purpose: $ python –c “import uuid print(uuid.uuid1())”įinally, it’s also possible to create UUIDs using MD5 or SHA1 hash algorithms similar to uuidgen. Similar to uuidgen, it’s also possible to generate time-based UUIDs. The uuid4() function of the uuid module generates a random-based UUID. Finally, we printed the output of this function call, which is the generated UUID, using the statement print(uuid.uuid4()). Then, we called the uuid4() function of this module using uuid.uuid4(). ![]() The first statement in the double quotes, import uuid, imported the uuid module. The – c option passed to the python command lets us execute Python statements from the command line. We’ll use Python for this purpose: $ python –c “import uuid print(uuid.uuid4())” It’s possible to generate UUIDs from the command line using scripting languages. We must use the -s option in this case: $ uuidgen -s -N -n can use –sha1 instead of -s. The other hash algorithm option that we can use is the SHA1 hash algorithm while generating UUIDs. Therefore, the command uuidgen -m -N -n generated a hash-based UUID using the string in the namespace as an input to the MD5 hash algorithm. There are several predefined namespaces, and is one of them. uuidgen first appends the namespace given by the -n option to the name given by the -N option and then generates the hash. The -N part of the last command told uuidgen to use the hash value of the string while generating the UUID. ![]() The – N option specifies the name whose hash shall be generated. Let’s create a hash-based UUID using uuidgen: $ uuidgen -m -N -n – m option tells uuidgen to use MD5 as the hash algorithm.
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