The MP34 (Maschinenpistole 34, literally "Machine Pistol 34") is a submachine gun (SMG) that was manufactured by Waffenfabrik Steyr and used by the Austrian police and subsequently by units of the German army, including the Waffen SS, in World War II. An exceptionally well-made weapon, it was used by some forces well into the 1970s.

The MP34 was based on a design for the MP18 by the Rheinmetall company based in Düsseldorf. The weapon is similar in design to the MP18 Bergmann, which itself saw service towards the end of World War I.

Restrictions on the manufacture of certain armaments within the 1919 Treaty of Versailles forbade Germany from manufacturing certain types of weapons, such as light automatic firearms (designated as SMGs with barrels in excess of four inches (102 mm) and magazines holding more than eight rounds). To circumvent the treaty, Rheinmetall acquired the Swiss company Waffenfabrik Solothurn in 1929 and began secret production of a prototype. What was to become the MP34 was originally designated ‘S1-100’ using the company’s standard naming convention.

Guido van Rossum (born 31 January 1956^{[citation needed]}) is a Dutch computer programmer who is best known as the author of the Python programming language. In the Python community, Van Rossum is known as a "Benevolent Dictator For Life" (BDFL), meaning that he continues to oversee the Python development process, making decisions where necessary. He is currently employed by Google, where he spends half his time working on Python development.

Van Rossum was born and grew up in the Netherlands, where he received a masters degree in mathematics and computer science from the University of Amsterdam in 1982. He later worked for various research institutes, including the Dutch Centrum Wiskunde & Informatica (CWI), Amsterdam, the United States National Institute of Standards and Technology (NIST), Gaithersburg, Maryland, and the Corporation for National Research Initiatives (CNRI), Reston, Virginia.

In December 2005, Van Rossum was hired by Google. He wrote a web-based code-review tool for Google in Python.