Issues

• feature: More granular exception control

  bug
  modflowpy/flopy#2856 · Filter by author hansonmcoombs opened on Sep 28, 2026
  6

• test_multi_model fails on macOS, the transport comparison exceeds its tolerance

  modflowpy/flopy#2828 · Filter by author jdhughes-dev opened on Aug 23, 2026
  

• Mf6Splitter: option to write DISV sub-models from a structured parent

  modflowpy/flopy#2816 · Filter by author jdhughes-dev opened on Aug 18, 2026

• optimize_splitting_mask(active_only=True) produces sub-models too large to run

  modflowpy/flopy#2814 · Filter by author jdhughes-dev opened on Aug 17, 2026
  3

• Mf6Splitter peak memory is dominated by per-cell python dicts

  modflowpy/flopy#2813 · Filter by author jdhughes-dev opened on Aug 17, 2026
  1

• Cleanup deprecated code throughout FloPy code base

  deprecationmaintenance
  Task

  modflowpy/flopy#2796 · Filter by author jlarsen-usgs opened on Aug 5, 2026
  

• bug: Better error support for reading UCN file from modflow 6

  bug
  modflowpy/flopy#2784 · Filter by author hansonmcoombs opened on Jul 21, 2026
  2

• Support imperfect dataframe in set_data() calls

  enhancementinteresting_ideas
  modflowpy/flopy#2758 · Filter by author briochh opened on May 22, 2026
  1

• feature: helper to intersect polylines with grid to determine HFB cellid1 and cellid2

  enhancement
  modflowpy/flopy#2742 · Filter by author jdhughes-dev opened on Apr 1, 2026
  2

  

• bug: the default value for coordinate_check_method in ModflowPrtprp of 'eager' errors in latest MODFLOW (6.6.3)

  bug
  modflowpy/flopy#2710 · Filter by author rubencalje opened on Feb 11, 2026 · 3.11.1
  4

• Increase max_columns_of_data default to prevent wrapped format?

  modflowpy/flopy#2708 · Filter by author kmarkovich opened on Feb 10, 2026 · 4.0
  1

• Reconciling point intersection methods

  modflowpy/flopy#2673 · Filter by author jlarsen-usgs opened on Dec 23, 2025
  4

• feature: opt into old-school formatted files

  enhancement
  modflowpy/flopy#2572 · Filter by author wpbonelli opened on Aug 7, 2025 · 4.0
  2

• CellBudgetFile for UZF package when set negative values for IUZFCB1

  bugrepro
  modflowpy/flopy#2536 · Filter by author NigelKinney opened on Jun 18, 2025 · 3.11.1
  4

• maintenance: Python version support

  maintenancequestion
  modflowpy/flopy#2466 · Filter by author wpbonelli opened on Mar 6, 2025 · 4.0
  4

• feature: Separate input and out files in different directories

  enhancement
  modflowpy/flopy#2462 · Filter by author pya opened on Mar 2, 2025 · 4.0
  4

• feat: easier steady-state vs transient period selection

  modflowpy/flopy#2359 · Filter by author wpbonelli opened on Nov 6, 2024 · 4.0

• feature: enforce named parameters for mf6 component types

  enhancement
  modflowpy/flopy#2358 · Filter by author wpbonelli opened on Nov 6, 2024 · 4.0

• feature: Pass model to Iterative Model solver

  enhancement
  modflowpy/flopy#2355 · Filter by author mbakker7 opened on Nov 5, 2024 · 4.0
  1

  

• bug: formatted write too long for specified number of characters

  bugquestion
  modflowpy/flopy#2329 · Filter by author hwreeves-USGS opened on Oct 8, 2024 · 3.11.1
  4

  

• feature: Adding Python type hints for input specifications

  enhancement
  modflowpy/flopy#2298 · Filter by author dannbuckley opened on Sep 2, 2024 · 4.0
  5

  

• Consensus on mf-prefixed class names

  help wantedinteresting_ideasquestion
  modflowpy/flopy#2243 · Filter by author martclanor opened on Jun 19, 2024 · 4.0
  3

• feature: speed-up resample_to_grid

  enhancement
  modflowpy/flopy#2169 · Filter by author cneyens opened on Apr 26, 2024 · 3.12
  4

  

• bug: check.py inconsistancies/errors

  bug
  modflowpy/flopy#2167 · Filter by author tdeyster opened on Apr 25, 2024 · 4.0
  1

• feature: warn on unrecognized units

  enhancement
  modflowpy/flopy#2008 · Filter by author wpbonelli opened on Nov 17, 2023 · 4.0
  1