sparse array length is ambiguous error when indexing list of strings #18

Open
Open
sparse array length is ambiguous error when indexing list of strings#18

Description

@samseaver
samseaver
opened on Jul 16, 2025

I put together the test code below based on a few things I read, and it seems like it would work, but I keep getting this error:

Traceback (most recent call last):
File "/Users/seaver/Seaver_Lab/Projects/Biochemistry_Functions/./test_neofuzz.py", line 36, in <module>
neofuzz_process.index(options)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/neofuzz/process.py", line 79, in index
self.nearest_neighbours.add_item(i_option, vector)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/scipy/sparse/_base.py", line 449, in __len__
raise TypeError("sparse array length is ambiguous; use getnnz()"
" or shape[0]")

#!/usr/bin/env python
import random
import string
def generate_random_word(length: int) -> str:
"""This bad boy generates random words of given length"""
letters = string.ascii_lowercase
return "".join(random.choice(letters) for _ in range(length))
# Let's generate 20 000 unique random words of length 10 to search in
options = list(set(generate_random_word(length=10) for _ in range(20_000)))
from neofuzz import char_ngram_process
neofuzz_process = char_ngram_process(ngram_range=(1,5), metric="angular", tf_idf=True)
neofuzz_process.index(options)

I've been back and forth but I can't figure out what I'm doing wrong here. I'm using version 0.4 as installed via pip

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      , '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
      sparse array length is ambiguous error when indexing list of strings #18
      Open
      Open
      sparse array length is ambiguous error when indexing list of strings#18
      Description
      @samseaver
      samseaver
      opened on Jul 16, 2025
      I put together the test code below based on a few things I read, and it seems like it would work, but I keep getting this error:
      Traceback (most recent call last):
File "/Users/seaver/Seaver_Lab/Projects/Biochemistry_Functions/./test_neofuzz.py", line 36, in <module>
neofuzz_process.index(options)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/neofuzz/process.py", line 79, in index
self.nearest_neighbours.add_item(i_option, vector)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/scipy/sparse/_base.py", line 449, in __len__
raise TypeError("sparse array length is ambiguous; use getnnz()"
" or shape[0]")

      #!/usr/bin/env python
import random
import string
def generate_random_word(length: int) -> str:
"""This bad boy generates random words of given length"""
letters = string.ascii_lowercase
return "".join(random.choice(letters) for _ in range(length))
# Let's generate 20 000 unique random words of length 10 to search in
options = list(set(generate_random_word(length=10) for _ in range(20_000)))
from neofuzz import char_ngram_process
neofuzz_process = char_ngram_process(ngram_range=(1,5), metric="angular", tf_idf=True)
neofuzz_process.index(options)

      I've been back and forth but I can't figure out what I'm doing wrong here. I'm using version 0.4 as installed via pip
      Activity
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, '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
          sparse array length is ambiguous error when indexing list of strings #18
          Open
          Open
          sparse array length is ambiguous error when indexing list of strings#18
          Description
          @samseaver
          samseaver
          opened on Jul 16, 2025
          I put together the test code below based on a few things I read, and it seems like it would work, but I keep getting this error:
          Traceback (most recent call last):
File "/Users/seaver/Seaver_Lab/Projects/Biochemistry_Functions/./test_neofuzz.py", line 36, in <module>
neofuzz_process.index(options)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/neofuzz/process.py", line 79, in index
self.nearest_neighbours.add_item(i_option, vector)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/scipy/sparse/_base.py", line 449, in __len__
raise TypeError("sparse array length is ambiguous; use getnnz()"
" or shape[0]")

          #!/usr/bin/env python
import random
import string
def generate_random_word(length: int) -> str:
"""This bad boy generates random words of given length"""
letters = string.ascii_lowercase
return "".join(random.choice(letters) for _ in range(length))
# Let's generate 20 000 unique random words of length 10 to search in
options = list(set(generate_random_word(length=10) for _ in range(20_000)))
from neofuzz import char_ngram_process
neofuzz_process = char_ngram_process(ngram_range=(1,5), metric="angular", tf_idf=True)
neofuzz_process.index(options)

          I've been back and forth but I can't figure out what I'm doing wrong here. I'm using version 0.4 as installed via pip
          Activity
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, '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
              sparse array length is ambiguous error when indexing list of strings #18
              Open
              Open
              sparse array length is ambiguous error when indexing list of strings#18
              Description
              @samseaver
              samseaver
              opened on Jul 16, 2025
              I put together the test code below based on a few things I read, and it seems like it would work, but I keep getting this error:
              Traceback (most recent call last):
File "/Users/seaver/Seaver_Lab/Projects/Biochemistry_Functions/./test_neofuzz.py", line 36, in <module>
neofuzz_process.index(options)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/neofuzz/process.py", line 79, in index
self.nearest_neighbours.add_item(i_option, vector)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/scipy/sparse/_base.py", line 449, in __len__
raise TypeError("sparse array length is ambiguous; use getnnz()"
" or shape[0]")

              #!/usr/bin/env python
import random
import string
def generate_random_word(length: int) -> str:
"""This bad boy generates random words of given length"""
letters = string.ascii_lowercase
return "".join(random.choice(letters) for _ in range(length))
# Let's generate 20 000 unique random words of length 10 to search in
options = list(set(generate_random_word(length=10) for _ in range(20_000)))
from neofuzz import char_ngram_process
neofuzz_process = char_ngram_process(ngram_range=(1,5), metric="angular", tf_idf=True)
neofuzz_process.index(options)

              I've been back and forth but I can't figure out what I'm doing wrong here. I'm using version 0.4 as installed via pip
              Activity
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, '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
                  sparse array length is ambiguous error when indexing list of strings #18
                  Open
                  Open
                  sparse array length is ambiguous error when indexing list of strings#18
                  Description
                  @samseaver
                  samseaver
                  opened on Jul 16, 2025
                  I put together the test code below based on a few things I read, and it seems like it would work, but I keep getting this error:
                  Traceback (most recent call last):
File "/Users/seaver/Seaver_Lab/Projects/Biochemistry_Functions/./test_neofuzz.py", line 36, in <module>
neofuzz_process.index(options)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/neofuzz/process.py", line 79, in index
self.nearest_neighbours.add_item(i_option, vector)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/scipy/sparse/_base.py", line 449, in __len__
raise TypeError("sparse array length is ambiguous; use getnnz()"
" or shape[0]")

                  #!/usr/bin/env python
import random
import string
def generate_random_word(length: int) -> str:
"""This bad boy generates random words of given length"""
letters = string.ascii_lowercase
return "".join(random.choice(letters) for _ in range(length))
# Let's generate 20 000 unique random words of length 10 to search in
options = list(set(generate_random_word(length=10) for _ in range(20_000)))
from neofuzz import char_ngram_process
neofuzz_process = char_ngram_process(ngram_range=(1,5), metric="angular", tf_idf=True)
neofuzz_process.index(options)

                  I've been back and forth but I can't figure out what I'm doing wrong here. I'm using version 0.4 as installed via pip
                  Activity
                  Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
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                      None yet
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                      No branches or pull requests
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, '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
                      sparse array length is ambiguous error when indexing list of strings #18
                      Open
                      Open
                      sparse array length is ambiguous error when indexing list of strings#18
                      Description
                      @samseaver
                      samseaver
                      opened on Jul 16, 2025
                      I put together the test code below based on a few things I read, and it seems like it would work, but I keep getting this error:
                      Traceback (most recent call last):
File "/Users/seaver/Seaver_Lab/Projects/Biochemistry_Functions/./test_neofuzz.py", line 36, in <module>
neofuzz_process.index(options)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/neofuzz/process.py", line 79, in index
self.nearest_neighbours.add_item(i_option, vector)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/scipy/sparse/_base.py", line 449, in __len__
raise TypeError("sparse array length is ambiguous; use getnnz()"
" or shape[0]")

                      #!/usr/bin/env python
import random
import string
def generate_random_word(length: int) -> str:
"""This bad boy generates random words of given length"""
letters = string.ascii_lowercase
return "".join(random.choice(letters) for _ in range(length))
# Let's generate 20 000 unique random words of length 10 to search in
options = list(set(generate_random_word(length=10) for _ in range(20_000)))
from neofuzz import char_ngram_process
neofuzz_process = char_ngram_process(ngram_range=(1,5), metric="angular", tf_idf=True)
neofuzz_process.index(options)

                      I've been back and forth but I can't figure out what I'm doing wrong here. I'm using version 0.4 as installed via pip
                      Activity
                      Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
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                          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
                          sparse array length is ambiguous error when indexing list of strings #18
                          Open
                          Open
                          sparse array length is ambiguous error when indexing list of strings#18
                          Description
                          @samseaver
                          samseaver
                          opened on Jul 16, 2025
                          I put together the test code below based on a few things I read, and it seems like it would work, but I keep getting this error:
                          Traceback (most recent call last):
File "/Users/seaver/Seaver_Lab/Projects/Biochemistry_Functions/./test_neofuzz.py", line 36, in <module>
neofuzz_process.index(options)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/neofuzz/process.py", line 79, in index
self.nearest_neighbours.add_item(i_option, vector)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/scipy/sparse/_base.py", line 449, in __len__
raise TypeError("sparse array length is ambiguous; use getnnz()"
" or shape[0]")

                          #!/usr/bin/env python
import random
import string
def generate_random_word(length: int) -> str:
"""This bad boy generates random words of given length"""
letters = string.ascii_lowercase
return "".join(random.choice(letters) for _ in range(length))
# Let's generate 20 000 unique random words of length 10 to search in
options = list(set(generate_random_word(length=10) for _ in range(20_000)))
from neofuzz import char_ngram_process
neofuzz_process = char_ngram_process(ngram_range=(1,5), metric="angular", tf_idf=True)
neofuzz_process.index(options)

                          I've been back and forth but I can't figure out what I'm doing wrong here. I'm using version 0.4 as installed via pip
                          Activity
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                              No branches or pull requests
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, '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); }
})();
})();

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                              sparse array length is ambiguous error when indexing list of strings #18
                              Open
                              Open
                              sparse array length is ambiguous error when indexing list of strings#18
                              Description
                              @samseaver
                              samseaver
                              opened on Jul 16, 2025
                              I put together the test code below based on a few things I read, and it seems like it would work, but I keep getting this error:
                              Traceback (most recent call last):
File "/Users/seaver/Seaver_Lab/Projects/Biochemistry_Functions/./test_neofuzz.py", line 36, in <module>
neofuzz_process.index(options)
~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/neofuzz/process.py", line 79, in index
self.nearest_neighbours.add_item(i_option, vector)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^
File "/opt/anaconda3/envs/fuzzy-matching/lib/python3.13/site-packages/scipy/sparse/_base.py", line 449, in __len__
raise TypeError("sparse array length is ambiguous; use getnnz()"
" or shape[0]")

                              #!/usr/bin/env python
import random
import string
def generate_random_word(length: int) -> str:
"""This bad boy generates random words of given length"""
letters = string.ascii_lowercase
return "".join(random.choice(letters) for _ in range(length))
# Let's generate 20 000 unique random words of length 10 to search in
options = list(set(generate_random_word(length=10) for _ in range(20_000)))
from neofuzz import char_ngram_process
neofuzz_process = char_ngram_process(ngram_range=(1,5), metric="angular", tf_idf=True)
neofuzz_process.index(options)

                              I've been back and forth but I can't figure out what I'm doing wrong here. I'm using version 0.4 as installed via pip
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