As a complete prototype to production development environment for numerical analysis applications, PyIMSL Studio provides modelers and implementation teams with a common set of tested and supported high-quality development tools as well as the same underlying numerical algorithms. Using PyIMSL Studio, prototype work is transformed into production applications faster and with less complexity, cost and risk. A key component of PyIMSL Studio is the collection of PyIMSL wrappers to the algorithms in the IMSL C Library. For users who need only a Python interface to IMSL Library algorithms, PyIMSL is available as a separate download. PyIMSL Studio is the only commercially-available numerical analysis application development environment. It contains both open source and proprietary components that create a fully supported and documented platform for analytic prototyping and production development. For prototyping, a number of open source tools including Python, NumPy, Eclipse, matplotlib and commercial components from Visual Numerics, Inc. are available for Python, including PyIMSL Python wrappers to the mathematics and statistics algorithms in the IMSL C Library. This combination of tools provides a rich environment for prototype development. For production deployment, PyIMSL Studio includes the IMSL C Library. Other I/O and data filtering components are available in both Python and C to further support deployment. Using the IMSL C Library provides parity between prototype and production code