FERS_calculations
FERS_calculations is a high-performance library for Rust-backed calculations in mechanical engineering. It can process JSON input files to deliver fast and accurate results. While it can be run as a standalone tool, integration with FERS_core simplifies input creation and workflow management.
Features
- Standalone Functionality: Run directly by providing a valid JSON input file.
- Rust-Powered Performance: Designed for speed and reliability in computational tasks.
- Python Integration: Seamless integration with
FERS_corefor easy preprocessing and result handling. - Engineer-Friendly Design: Minimal coding effort required for complex structural engineering calculations.
Installation
pip install fers_calculations
This installs the pre-built Rust bindings -- no Rust toolchain required.
Usage
Standalone (Python)
You can call fers_calculations directly from Python without FERS_core:
import fers_calculations
# Load your JSON input
with open("001_cantilever_with_end_load.json") as f:
json_data = f.read()
# Run the analysis
results_json = fers_calculations.calculate_from_json(json_data)
# Save the results
with open("results.json", "w") as f:
f.write(results_json)
Premium licensing and timeouts
Passing api_key unlocks Premium model limits. That is the only thing that makes
the library contact the network — omit it and no request is ever sent.
Because a licence check is a network call, it is bounded. If ferscloud.com does
not answer within license_timeout seconds (default 30) the call raises
fers_calculations.FersTimeoutError before the solve starts, so retrying is
always safe:
import fers_calculations
try:
fers_calculations.calculate_to_file(
json_data, "results.json", api_key=KEY, license_timeout=60
)
except fers_calculations.FersTimeoutError:
... # transient — retry or skip this model
FersTimeoutError subclasses the built-in TimeoutError, so except TimeoutError
catches it too. A definitive failure — an invalid key, a non-premium account, an
unreachable host — raises RuntimeError instead, since retrying those is pointless.
license_timeout bounds the licence handshake only, not the solve. To put a
hard ceiling on a whole solve, run it in a killable subprocess.
Two environment variables are read (real process environment only — .env files
are loaded by the CLI binary, never by this extension module):
| Variable | Purpose | Default |
|---|---|---|
FERS_LICENSE_TIMEOUT |
Default license_timeout, in seconds |
30 |
FERS_CLOUD_URL |
Base URL of the licence API | https://ferscloud.com |
With FERS_core (recommended)
For a more ergonomic workflow, install FERS_core which handles model creation, calling the Rust engine, and post-processing / visualisation:
pip install fers-core
from fers_core import FERS
model = FERS.from_json("001_cantilever_with_end_load.json")
model.calculate()
model.plot_results_3d()
See FERS_core on PyPI for full documentation.
1 maintainer
Download files
Download the file for your platform. If you're not sure which to choose, learn more about installing packages.
Source Distributions
Built Distributions
Filter files by name, interpreter, ABI, and platform.
If you're not sure about the file name format, learn more about wheel file names.
Copy a direct link to the current filters
File details
Details for the file fers_calculations-0.2.53-cp39-abi3-win_amd64.whl.
File metadata
- Download URL: fers_calculations-0.2.53-cp39-abi3-win_amd64.whl
- Upload date:
- Size: 2.8 MB
- Tags: CPython 3.9+, Windows x86-64
- Uploaded using Trusted Publishing? No
- Uploaded via:
maturin/1.14.1
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
c7f1a874a7a37c97a1f487a8b0c6883f4a3dbe11035fa6896aae121f0c4976f6
|
|
| MD5 |
182377a41ab60e6412d0f96f657ed5ec
|
|
| BLAKE2b-256 |
643c429edd3e906684b30f513b31e5124fa428f9fd185b1d154010fe236fc1ac
|
File details
Details for the file fers_calculations-0.2.53-cp39-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.
File metadata
- Download URL: fers_calculations-0.2.53-cp39-abi3-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
- Upload date:
- Size: 10.5 MB
- Tags: CPython 3.9+, manylinux: glibc 2.17+ x86-64
- Uploaded using Trusted Publishing? No
- Uploaded via:
maturin/1.14.1
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
34191da86bc674642f25c1a9db996221a14242280fca5f2d3fd763e7f282c03c
|
|
| MD5 |
6ffddd3f2dc7b58b56f12d186d5c2948
|
|
| BLAKE2b-256 |
e13aff1b0158c92e2e256f6122ad083e31a141faeefbb5a3544ce80a36a230bc
|
File details
Details for the file fers_calculations-0.2.53-cp39-abi3-macosx_10_12_x86_64.macosx_11_0_arm64.macosx_10_12_universal2.whl.
File metadata
- Download URL: fers_calculations-0.2.53-cp39-abi3-macosx_10_12_x86_64.macosx_11_0_arm64.macosx_10_12_universal2.whl
- Upload date:
- Size: 5.6 MB
- Tags: CPython 3.9+, macOS 10.12+ universal2 (ARM64, x86-64), macOS 10.12+ x86-64, macOS 11.0+ ARM64
- Uploaded using Trusted Publishing? No
- Uploaded via:
maturin/1.14.1
File hashes
| Algorithm | Hash digest | |
|---|---|---|
| SHA256 |
0bb5b6ba5300c80739c0abd3c51e6a0dfe5c018af0b4c01881807b48d1107760
|
|
| MD5 |
9207581bb914a64c4c0c780310a1aa8d
|
|
| BLAKE2b-256 |
a719e4686a6c691fd45dac49516e672c9f00f671548e4558aa97bf2f5756b876
|
