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Python Migration · Manchester

Python Migration in Manchester

Python version migrations for Manchester organisations, where the risk sits in the dependency graph rather than in your own code. The language itself changes modestly between recent versions; what breaks is a package three levels down that never released a build for the version you are moving to, and nobody knows it is there.

Why this comes up

The problem

The upgrade fails on a package nobody chose, pulled in transitively by something else, with no maintained release.

What you get

What we deliver

  • The full dependency graph resolved and assessed, not just direct requirements
  • Compiled packages identified, since these need builds for the target version
  • Removed and deprecated standard library modules found before the change
  • Environments locked so the migration is reproducible rather than approximate
  • Test suite run on both versions during the transition period
  • A supported version targeted, with the end-of-life dates written down

Want this scoped for your business in Manchester?

Thirty minutes, no charge, no sales script. You leave with a written summary of what python migration would actually involve — whether or not you use us.

Book a 30-minute call

Working in Manchester

North West

Manchester has the largest tech cluster outside London, which means competitive hiring and a local market that already knows what modern delivery looks like — the bar for a website or product here is genuinely higher.

Demand is competitive and design-led — clients here are benchmarking against well-funded local products and expect the same standard.

Sectors we work with in Manchester

  • Digital & Tech
  • Media
  • Financial Services
  • Life Sciences
  • Hospitality

What we work with

Technologies and platforms

  • Python
  • uv
  • pytest
  • Docker

Who we work with

Industries we serve

  • Research organisations
  • Financial services
  • Technology companies
  • Healthcare
  • Media companies

Why us

Why Manchester businesses choose Asionis

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

How we work

  1. Step 1

    Free consultation

    A 30-minute call to understand the problem. You keep the written summary either way.

  2. Step 2

    Proposal

    Scope, timeline and a fixed price, in writing, before anything starts.

  3. Step 3

    Build

    Short cycles with regular check-ins, so you see progress rather than hear about it.

  4. Step 4

    Launch and support

    We handle the go-live and stay available afterwards.

Python Migration in Manchester — common questions

Why are transitive dependencies the problem?
Because nobody chose them and nobody is watching them. Your direct requirements are usually well maintained, and the graph beneath them contains packages last released years ago — which surface only when the install fails on a version they never supported.
What about compiled packages?
They need builds for your target version and platform. Where a maintained release exists this is invisible; where it does not, you are compiling from source or finding a replacement, and that is the work most likely to be underestimated.
Is Python 2 still a live case?
Occasionally, and it is a different exercise entirely — closer to a rewrite than a migration, with no security support behind it for years. Anything still running on it should be treated as urgent rather than as a version upgrade.
How do we stay current afterwards?
Write down the end-of-life date for the version you land on and plan the next move before it arrives. Python releases annually with a defined support period, so the schedule is predictable and only becomes a problem when nobody is tracking it.
Do you work with businesses across Greater Manchester?
Yes. We are based in Leicester, United Kingdom and work with clients throughout North West, including Manchester and the surrounding Greater Manchester area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
What kind of Manchester businesses do you usually work with?
Demand is competitive and design-led — clients here are benchmarking against well-funded local products and expect the same standard. Beyond that we work across Digital & Tech, Media, Financial Services, Life Sciences and Hospitality.
Do you cover the areas around Manchester?
Yes — we work throughout North West, including Liverpool, Leeds, Sheffield. Manchester is an urban area of roughly 2,800,000+, and we take on work across the wider Greater Manchester region rather than the city boundary alone.

Talk to us about Python Migration in Manchester

A 30-minute call with someone who would actually work on it. No sales script, no obligation.

  • Projects typically launched within 4–8 weeks
  • No long-term contracts required
  • All team members UK-based
  • Dedicated account manager and development team
  • Transparent reporting with monthly performance metrics
  • Scalable from startup to enterprise

Or reach us directly

07707 771599admin@asionis.com

Leicester, United Kingdom