Remove all layers except one

Damian

Hi, I'm making the transition from ArcMap to ArcGIS Pro so please forgive my ignorance...

At the start of my Arcpy script, I am trying to delete all of my layers in my layout except 'Coast'. When I run my script below it crashes ArcGIS Pro. Any advice graciously accepted.

aprx <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>mp<SPAN class="punctuation token">.</SPAN>ArcGISProject<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"CURRENT"</SPAN><SPAN class="punctuation token">)</SPAN>
mp <SPAN class="operator token">=</SPAN> aprx<SPAN class="punctuation token">.</SPAN>listMaps<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Map"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>

<SPAN class="comment token"># Remove all layers except coast</SPAN>
keeplyr <SPAN class="operator token">=</SPAN> mp<SPAN class="punctuation token">.</SPAN>listLayers<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Coast"</SPAN><SPAN class="punctuation token">)</SPAN>
<SPAN class="keyword token">for</SPAN> rmlyr <SPAN class="keyword token">in</SPAN> mp<SPAN class="punctuation token">.</SPAN>listLayers<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">:</SPAN>
 <SPAN class="keyword token">if</SPAN> rmlyr <SPAN class="operator token">!=</SPAN> keeplyr<SPAN class="punctuation token">:</SPAN>
 mp<SPAN class="punctuation token">.</SPAN>removeLayer<SPAN class="punctuation token">(</SPAN>rmlyr<SPAN class="punctuation token">)</SPAN>‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍<SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>

DavidPike

it seems like you're trying to find an equality between two layer objects, i'd probably utilise the .name property for evaluation. you've also got a bad indent at the bottom. Might work, might not, I'm not a doctor.

aprx <SPAN class="operator token">=</SPAN> arcpy<SPAN class="punctuation token">.</SPAN>mp<SPAN class="punctuation token">.</SPAN>ArcGISProject<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"CURRENT"</SPAN><SPAN class="punctuation token">)</SPAN>
mp <SPAN class="operator token">=</SPAN> aprx<SPAN class="punctuation token">.</SPAN>listMaps<SPAN class="punctuation token">(</SPAN><SPAN class="string token">"Map"</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">[</SPAN><SPAN class="number token">0</SPAN><SPAN class="punctuation token">]</SPAN>

<SPAN class="comment token"># Remove all layers except coast</SPAN>

<SPAN class="keyword token">for</SPAN> rmlyr <SPAN class="keyword token">in</SPAN> mp<SPAN class="punctuation token">.</SPAN>listLayers<SPAN class="punctuation token">(</SPAN><SPAN class="punctuation token">)</SPAN><SPAN class="punctuation token">:</SPAN>
    <SPAN class="keyword token">if</SPAN> rmlyr<SPAN class="punctuation token">.</SPAN>name <SPAN class="operator token">!=</SPAN> <SPAN class="string token">"Coast"</SPAN><SPAN class="punctuation token">:</SPAN>
        mp<SPAN class="punctuation token">.</SPAN>removeLayer<SPAN class="punctuation token">(</SPAN>rmlyr<SPAN class="punctuation token">)</SPAN><SPAN class="line-numbers-rows"><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN><SPAN>‍</SPAN></SPAN>