<p dir="auto">See <a href="https://docs.scipy.org/doc/numpy/reference/" rel="nofollow">https://docs.scipy.org/doc/numpy/reference/</a> for the NumPy 1.17 documentation. <a href="https://numpy.org/devdocs/" rel="nofollow">https://numpy.org/devdocs/</a> refers to NumPy 1.19 documentation.</p>
<p dir="auto">From <a href="https://numpy.org/doc/" rel="nofollow">https://numpy.org/doc/</a>, there is no mention of NumPy 1.18 documentation.</p>
<p dir="auto"><a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/18295279/73811247-9a753980-479e-11ea-94d4-152ac8236330.jpg"><img src="https://user-images.githubusercontent.com/18295279/73811247-9a753980-479e-11ea-94d4-152ac8236330.jpg" alt="no-numpy-1-18-documentation" style="max-width: 100%;"></a><br>
<a target="_blank" rel="noopener noreferrer nofollow" href="https://user-images.githubusercontent.com/18295279/73811262-a4973800-479e-11ea-81f4-e3d57d6702cd.jpg"><img src="https://user-images.githubusercontent.com/18295279/73811262-a4973800-479e-11ea-81f4-e3d57d6702cd.jpg" alt="missing-numpy-1-19-documentation" style="max-width: 100%;"></a></p>
<p dir="auto"><em>Original ticket <a href="http://projects.scipy.org/numpy/ticket/1826" rel="nofollow">http://projects.scipy.org/numpy/ticket/1826</a> on 2011-05-10 by trac user shegler, assigned to unknown.</em></p>
<p dir="auto">When using custom named data types, the wrong element is reported as the conflicting one. The following snippet</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="dt=numpy.dtype([
    ('a','f8'),
    ('a','f8'),
    ('b','f8'),
])"><pre class="notranslate"><code class="notranslate">dt=numpy.dtype([
    ('a','f8'),
    ('a','f8'),
    ('b','f8'),
])
</code></pre></div>
<p dir="auto">reports:</p>
<div class="snippet-clipboard-content notranslate position-relative overflow-auto" data-snippet-clipboard-copy-content="Traceback (most recent call last):
  File &quot;dtype_bug.py&quot;, line 8, in &lt;module&gt;
    ('b','f8'),
ValueError: two fields with the same name"><pre class="notranslate"><code class="notranslate">Traceback (most recent call last):
  File "dtype_bug.py", line 8, in &lt;module&gt;
    ('b','f8'),
ValueError: two fields with the same name
</code></pre></div>
<p dir="auto">It should, however, report the name which occurs twice, "a" in this case.</p>