TIOBE Programming Community Index for July 2007

July Headline: Lua enters top 20, F# enters top 50

The TIOBE Programming Community index gives an indication of the popularity of programming languages. The index is updated once a month. The ratings are based on the world-wide availability of skilled engineers, courses and third party vendors. The popular search engines Google, MSN, and Yahoo! are used to calculate the ratings. Observe that the TIOBE index is not about the best programming language or the language in which most lines of code have been written.

The index can be used to check whether your programming skills are still up to date or to make a strategic decision about what programming language should be adopted when starting to build a new software system. The definition of the TIOBE index can be found here.

Position Jul 2007	Position Jul 2006	Delta in Position	Programming Language	Ratings Jul 2007	Delta Jul 2006	Status
1	1		Java	21.014%	-0.84%	A
2	2		C	16.363%	-1.47%	A
3	5		C++	10.502%	+0.72%	A
4	3		(Visual) Basic	9.729%	-0.96%	A
5	4		PHP	8.653%	-1.70%	A
6	6		Perl	5.328%	-0.30%	A
7	7		C#	3.710%	+0.31%	A
8	8		Python	3.024%	+0.01%	A
9	9		JavaScript	2.515%	+0.41%	A
10	17		Ruby	2.099%	+1.59%	A
11	12		PL/SQL	1.967%	+1.01%	A
12	11		SAS	1.858%	+0.11%	A
13	10		Delphi	1.498%	-0.54%	A
14	20		D	1.364%	+0.91%	A
15	15		Lisp/Scheme	0.680%	+0.16%	B
16	14		Ada	0.604%	+0.06%	B
17	19		COBOL	0.584%	+0.12%	B
18	54		Lua	0.577%	+0.52%	B
19	23		ABAP	0.575%	+0.20%	B
20	13		FoxPro/xBase	0.563%	-0.30%	B

Long term trends

The long term trends for the first 10 programming languages can be found in the line diagram below.

Other programming languages

The complete top 50 of programming languages is listed below. This overview is published unofficially, because it could be the case that we missed a language. If you have the impression there is a programming language lacking, please notify us at tpci@tiobe.com.

The Next 50 Programming Languages

The following list of languages denotes #51 to #100. Since the differences are relatively small, the programming languages are only listed (in alphabetical order).

• ABC, Alpha, Applescript, AspectJ, Beta, cg, Ch, Clarion, Clean, Csh, cT, DC, DCL, Dylan, Eiffel, Erlang, Euphoria, Felix, Focus, Fortress, Groovy, Inform, Intercal, Io, J#, MAD, Magic, Maple, Mathematica, Modula-2, MOO, MUMPS, Occam, Oz, PILOT, PL/I, Powerbuilder, Progress, Q, R, REALbasic, Scala, Seed7, SIGNAL, Simula, SPSS, Verilog, VHDL, XSLT, Yorick

July Newsflash - Brought to you by Paul Jansen

• This month, it looks like the month of game programming languages with a functional nature. Lua, particularly known as the implementation language of "World of Warcraft", has entered the top 20. Now that all the hype around Ruby is cooling down, it seems to be time for a new scripting language. Lua is dynamically typed, with a very small but extendable language definition. It has borrowed a lot of features from the functional world.
• At the same time Xbox compatible language F# entered the top 50. Everybody expected Scala (currently at #55) or Groovy (#54) to hit the top 50 this month, but F# was to one that really made it. F# is just like Lua a functional-like language. Although F# is still a Research project from Microsoft, it gains a lot of attention already.
• In the tables below some long term trends are listed about categories of languages. The tables show that dynamically typed object-oriented languages are still becoming more popular.
  
  

  Category	Ratings July 2007	Delta July 2006
  Object-Oriented Languages	52.3%	+1.5%
  Procedural Languages	44.4%	-3.1%
  Logical Languages	1.9%	+1.0%
  Functional Languages	1.3%	+0.7%

  
  
  

  Category	Ratings July 2007	Delta July 2006
  Statically Typed Languages	59.1%	-1.0%
  Dynamically Typed Languages	40.9%	+1.0%