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<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">At the suggestion of Doug Hellmann, and relative to a conversation with him and Flavio at Summit. Doug suggested that I pose this question on the dev mailing list so someone from
 OSLO can communicate the answer to the entire community (rather than just the private email exchange that we had).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Here’s the situation, I’m using loopingcall.py as an example, this is not limited to this module but serves as an example.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">An OSLO incubator module loopingcall depends on another OSLO incubator module timeutils.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">timeutils has graduated [drum-roll] and is now part of oslo.utils.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">There is also other project code that references timeutils.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">So, to handle the graduation of timeutils, the changes I’ll be making are:<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New""><span style="mso-list:Ignore">1.<span style="font:7.0pt "Times New Roman""> 
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Courier New"">Remove timeutils from openstack-common.conf<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo1"><![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New""><span style="mso-list:Ignore">2.<span style="font:7.0pt "Times New Roman""> 
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Courier New"">Make the project code reference oslo.utils<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">But what of loopingcall? Should I<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New""><span style="mso-list:Ignore">a.<span style="font:7.0pt "Times New Roman""> 
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Courier New"">Update it and change the import(s) therein to point to oslo.utils, or<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New""><span style="mso-list:Ignore">b.<span style="font:7.0pt "Times New Roman""> 
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Courier New"">Sync the oslo-incubator code for loopingcall, picking up all changes at least upto and including the change in oslo-incubator that handles the graduation of oslo.utils.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">In speaking with Doug and Flavio, (after I submitted copious amounts of code that did (a)) above, I’ve come to learn that I chose the wrong answer. The correct answer is (b). This
 doesn’t have to be part of the same commit, and what I’ve ended up doing is this …<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l1 level1 lfo2"><![if !supportLists]><span style="font-size:10.0pt;font-family:"Courier New""><span style="mso-list:Ignore">c.<span style="font:7.0pt "Times New Roman""> 
</span></span></span><![endif]><span style="font-size:10.0pt;font-family:"Courier New"">Leave timeutils in <project>/openstack/common and let oslo-incubator depend on it while migrating the project to use oslo.utils. In a subsequent commit, a sync from oslo-incubator
 can happen.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">I’d like someone on OSLO to confirm this, and for other projects whose lead I followed, you may want to address these in the changes you have in flight or have already merged.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">Thanks,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New"">-amrith<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;font-family:"Courier New""><o:p> </o:p></span></p>
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