Why Python Is Growing Faster Than Any Other Language in High‑Income Countries

Abstract: This article analyzes Python and several other programming languages using Stack Overflow traffic data, comparing trends in high‑income and non‑high‑income countries.

Python Growth in High‑Income Countries

Recent research indicates that wealthy nations (as defined by the World Bank) favor different technologies than other regions, with Python showing the most pronounced difference. In high‑income countries, Python’s growth rate appears even faster than reported by Stack Overflow Trends or other global software development rankings.

We examine the unusually rapid growth of Python over the past five years as reflected in Stack Overflow traffic from high‑income nations. We consider Python to be the fastest‑growing mainstream programming language.

The data primarily come from high‑income countries such as the United States, United Kingdom, Germany, Canada, and similar economies, which together account for 64 % of Stack Overflow traffic. Other countries like India, Brazil, Russia, and China also contribute significantly, but their Python growth is discussed only briefly.

It is important to note that the number of users of a language does not measure its quality; we are discussing developer usage, not prescribing language choice.

Key Findings

In June 2017, Python became the most viewed tag on Stack Overflow in high‑income countries, topping the charts in the United States and the United Kingdom and ranking among the top two in most other affluent nations (often alongside Java or JavaScript). This is striking because in 2012 Python’s traffic was lower than the five other languages examined, yet it has since increased by 2.5 times.

Part of this phenomenon is due to seasonal fluctuations in Java traffic, which peaks during academic semesters and dips in summer. A model called “STL” (Seasonal‑Trend‑Loess) was used to forecast the next two years, suggesting Python may retain its lead this fall or be briefly overtaken by Java, but by 2018 Python is expected to remain the most popular tag. The model also predicts that JavaScript and Java will maintain similar traffic levels in high‑income countries.

When considering all tags, Python leads with a 27 % annual growth rate, making it both the highest‑traffic and fastest‑growing tag. R follows with a comparable growth rate. Most other major tags show stable traffic, while Android, iOS, and PHP have slightly declined. Among functional languages, Scala enjoys high traffic and rapid growth, whereas F# and Clojure are smaller and declining, and Haskell remains stable.

TypeScript’s traffic surged by 142 % last year, warranting separate attention. Other smaller languages such as Go and Rust exhibit growth rates similar to or faster than Python, and tags like Swift and Scala also show impressive expansion.

Overall, Python stands out as one of the most popular and fastest‑growing tags on Stack Overflow.

Other Regions

In non‑high‑income countries (e.g., India, Brazil, Russia, China), Python remains the fastest‑growing mainstream language, though its baseline was lower and growth began around 2014 rather than 2012. Interestingly, the year‑over‑year growth rate in these regions is slightly higher than in high‑income countries.

Many conclusions drawn from high‑income country traffic also apply to other regions, with a correlation coefficient of 0.979 between their growth rates. Occasionally, a “lag” effect is observed, where a technology gains acceptance in high‑income nations one to two years before it does elsewhere.

Next Steps

While we do not intend to spark a “language war,” understanding which languages are building robust developer ecosystems and how those ecosystems evolve is valuable for making informed technology decisions.