[Bug]: flit publish fails with incompatible flit_core 4.x dependency #402

Description

@harryswift01

Bug Report

flit publish fails during the GitHub Actions release workflow with:

TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'

To Reproduce

- name: Install flitrun: | python -m pip install --upgrade pip python -m pip install flit~=3.9- name: Publishrun: flit publish

Build configuration:

[build-system]
requires = ["flit_core >=3.4,<4"]
build-backend = "flit_core.buildapi"

Actual Output

Run flit publish
Fetching list of valid trove classifiers
Using repository at https://upload.pypi.org/legacy/
...
File ".../flit/build.py", line 46, in main
sdist_file = sb.build(dist_dir, gen_setup_py=gen_setup_py)
TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
Error: Process completed with exit code 1.

Expected Behaviour

The package should build and publish successfully to PyPI.

Environment

  • GitHub Actions
  • Python 3.14.6
  • Flit installed with flit~=3.9

Activity

Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

Labels

bugSomething isn't working

Type

Projects

No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions

    , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all
     blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
    }
    } catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
    })();
    (function(){
    try {
    var __m = "github.com";
    var __re = new RegExp('^' + "github\\.com" + '
    
    Skip to content

    [Bug]: flit publish fails with incompatible flit_core 4.x dependency #402

    Description

    @harryswift01

    Bug Report

    flit publish fails during the GitHub Actions release workflow with:

    TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
    

    To Reproduce

    - name: Install flitrun: | python -m pip install --upgrade pip python -m pip install flit~=3.9- name: Publishrun: flit publish

    Build configuration:

    [build-system]
    requires = ["flit_core >=3.4,<4"]
    build-backend = "flit_core.buildapi"

    Actual Output

    Run flit publish
    Fetching list of valid trove classifiers
    Using repository at https://upload.pypi.org/legacy/
    ...
    File ".../flit/build.py", line 46, in main
    sdist_file = sb.build(dist_dir, gen_setup_py=gen_setup_py)
    TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
    Error: Process completed with exit code 1.
    

    Expected Behaviour

    The package should build and publish successfully to PyPI.

    Environment

    • GitHub Actions
    • Python 3.14.6
    • Flit installed with flit~=3.9

    Activity

    Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

    Metadata

    Metadata

    Assignees

    Labels

    bugSomething isn't working

    Type

    Projects

    No projects

      Milestone

      No milestone

      Relationships

      None yet

      Development

      No branches or pull requests

      Issue actions

      , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
      Skip to content

      [Bug]: flit publish fails with incompatible flit_core 4.x dependency #402

      Description

      @harryswift01

      Bug Report

      flit publish fails during the GitHub Actions release workflow with:

      TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
      

      To Reproduce

      - name: Install flitrun: | python -m pip install --upgrade pip python -m pip install flit~=3.9- name: Publishrun: flit publish

      Build configuration:

      [build-system]
      requires = ["flit_core >=3.4,<4"]
      build-backend = "flit_core.buildapi"

      Actual Output

      Run flit publish
      Fetching list of valid trove classifiers
      Using repository at https://upload.pypi.org/legacy/
      ...
      File ".../flit/build.py", line 46, in main
      sdist_file = sb.build(dist_dir, gen_setup_py=gen_setup_py)
      TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
      Error: Process completed with exit code 1.
      

      Expected Behaviour

      The package should build and publish successfully to PyPI.

      Environment

      • GitHub Actions
      • Python 3.14.6
      • Flit installed with flit~=3.9

      Activity

      Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

      Metadata

      Metadata

      Assignees

      Labels

      bugSomething isn't working

      Type

      Projects

      No projects

        Milestone

        No milestone

        Relationships

        None yet

        Development

        No branches or pull requests

        Issue actions

        , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
        Skip to content

        [Bug]: flit publish fails with incompatible flit_core 4.x dependency #402

        Description

        @harryswift01

        Bug Report

        flit publish fails during the GitHub Actions release workflow with:

        TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
        

        To Reproduce

        - name: Install flitrun: | python -m pip install --upgrade pip python -m pip install flit~=3.9- name: Publishrun: flit publish

        Build configuration:

        [build-system]
        requires = ["flit_core >=3.4,<4"]
        build-backend = "flit_core.buildapi"

        Actual Output

        Run flit publish
        Fetching list of valid trove classifiers
        Using repository at https://upload.pypi.org/legacy/
        ...
        File ".../flit/build.py", line 46, in main
        sdist_file = sb.build(dist_dir, gen_setup_py=gen_setup_py)
        TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
        Error: Process completed with exit code 1.
        

        Expected Behaviour

        The package should build and publish successfully to PyPI.

        Environment

        • GitHub Actions
        • Python 3.14.6
        • Flit installed with flit~=3.9

        Activity

        Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

        Metadata

        Metadata

        Assignees

        Labels

        bugSomething isn't working

        Type

        Projects

        No projects

          Milestone

          No milestone

          Relationships

          None yet

          Development

          No branches or pull requests

          Issue actions

          , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
          Skip to content

          [Bug]: flit publish fails with incompatible flit_core 4.x dependency #402

          Description

          @harryswift01

          Bug Report

          flit publish fails during the GitHub Actions release workflow with:

          TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
          

          To Reproduce

          - name: Install flitrun: | python -m pip install --upgrade pip python -m pip install flit~=3.9- name: Publishrun: flit publish

          Build configuration:

          [build-system]
          requires = ["flit_core >=3.4,<4"]
          build-backend = "flit_core.buildapi"

          Actual Output

          Run flit publish
          Fetching list of valid trove classifiers
          Using repository at https://upload.pypi.org/legacy/
          ...
          File ".../flit/build.py", line 46, in main
          sdist_file = sb.build(dist_dir, gen_setup_py=gen_setup_py)
          TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
          Error: Process completed with exit code 1.
          

          Expected Behaviour

          The package should build and publish successfully to PyPI.

          Environment

          • GitHub Actions
          • Python 3.14.6
          • Flit installed with flit~=3.9

          Activity

          Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

          Metadata

          Metadata

          Assignees

          Labels

          bugSomething isn't working

          Type

          Projects

          No projects

            Milestone

            No milestone

            Relationships

            None yet

            Development

            No branches or pull requests

            Issue actions

            , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
            Skip to content

            [Bug]: flit publish fails with incompatible flit_core 4.x dependency #402

            Description

            @harryswift01

            Bug Report

            flit publish fails during the GitHub Actions release workflow with:

            TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
            

            To Reproduce

            - name: Install flitrun: | python -m pip install --upgrade pip python -m pip install flit~=3.9- name: Publishrun: flit publish

            Build configuration:

            [build-system]
            requires = ["flit_core >=3.4,<4"]
            build-backend = "flit_core.buildapi"

            Actual Output

            Run flit publish
            Fetching list of valid trove classifiers
            Using repository at https://upload.pypi.org/legacy/
            ...
            File ".../flit/build.py", line 46, in main
            sdist_file = sb.build(dist_dir, gen_setup_py=gen_setup_py)
            TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
            Error: Process completed with exit code 1.
            

            Expected Behaviour

            The package should build and publish successfully to PyPI.

            Environment

            • GitHub Actions
            • Python 3.14.6
            • Flit installed with flit~=3.9

            Activity

            Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

            Metadata

            Metadata

            Assignees

            Labels

            bugSomething isn't working

            Type

            Projects

            No projects

              Milestone

              No milestone

              Relationships

              None yet

              Development

              No branches or pull requests

              Issue actions

              , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
              Skip to content

              [Bug]: flit publish fails with incompatible flit_core 4.x dependency #402

              Description

              @harryswift01

              Bug Report

              flit publish fails during the GitHub Actions release workflow with:

              TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
              

              To Reproduce

              - name: Install flitrun: | python -m pip install --upgrade pip python -m pip install flit~=3.9- name: Publishrun: flit publish

              Build configuration:

              [build-system]
              requires = ["flit_core >=3.4,<4"]
              build-backend = "flit_core.buildapi"

              Actual Output

              Run flit publish
              Fetching list of valid trove classifiers
              Using repository at https://upload.pypi.org/legacy/
              ...
              File ".../flit/build.py", line 46, in main
              sdist_file = sb.build(dist_dir, gen_setup_py=gen_setup_py)
              TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
              Error: Process completed with exit code 1.
              

              Expected Behaviour

              The package should build and publish successfully to PyPI.

              Environment

              • GitHub Actions
              • Python 3.14.6
              • Flit installed with flit~=3.9

              Activity

              Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

              Metadata

              Metadata

              Assignees

              Labels

              bugSomething isn't working

              Type

              Projects

              No projects

                Milestone

                No milestone

                Relationships

                None yet

                Development

                No branches or pull requests

                Issue actions

                , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
                Skip to content

                [Bug]: flit publish fails with incompatible flit_core 4.x dependency #402

                Description

                @harryswift01

                Bug Report

                flit publish fails during the GitHub Actions release workflow with:

                TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
                

                To Reproduce

                - name: Install flitrun: | python -m pip install --upgrade pip python -m pip install flit~=3.9- name: Publishrun: flit publish

                Build configuration:

                [build-system]
                requires = ["flit_core >=3.4,<4"]
                build-backend = "flit_core.buildapi"

                Actual Output

                Run flit publish
                Fetching list of valid trove classifiers
                Using repository at https://upload.pypi.org/legacy/
                ...
                File ".../flit/build.py", line 46, in main
                sdist_file = sb.build(dist_dir, gen_setup_py=gen_setup_py)
                TypeError: SdistBuilder.build() got an unexpected keyword argument 'gen_setup_py'
                Error: Process completed with exit code 1.
                

                Expected Behaviour

                The package should build and publish successfully to PyPI.

                Environment

                • GitHub Actions
                • Python 3.14.6
                • Flit installed with flit~=3.9

                Activity

                Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

                Metadata

                Metadata

                Assignees

                Labels

                bugSomething isn't working

                Type

                Projects

                No projects

                  Milestone

                  No milestone

                  Relationships

                  None yet

                  Development

                  No branches or pull requests

                  Issue actions