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Python

Dynamic Django mod_wsgi hook files

# --- django.wsgi - in any project
from some_common_module import wsgi_helper
application = wsgi_helper.setup(__file__)


# --- wsgi_helper.py - in some_common_module
import os, sys
import django.core.handlers.wsgi

def setup(filename):
	project_root = os.sep.join(filename.split(os.sep)[:-2])
	project_dir = None
	
	for path in os.listdir(project_root):
		# Find each dir off the root, and check it for settings.py
	
		path = os.path.join(project_root, path)
	
		if os.path.isdir(path):
			file = "".join([path, os.sep, "settings.py"])
			if os.path.exists(file):
				# We have found /project_name/settings.py
				project_dir = path
				os.environ['DJANGO_SETTINGS_MODULE'] = '%s.settings' % path.split(os.sep)[-1]
	
	if not project_dir:
		raise Exception("Could not find project settings file! Checked path: %s" % path)
	
	if project_root not in sys.path: sys.path.insert(0, project_root)
	if project_dir not in sys.path: sys.path.insert(0, project_dir)

	return django.core.handlers.wsgi.WSGIHandler()
https://snippets.siftie.com/embed/a88e2c1963937287aec6a98f3dff6350/
/raw/a88e2c1963937287aec6a98f3dff6350/
a88e2c1963937287aec6a98f3dff6350
python
Python
32
2019-04-22T22:09:12
True
False
False
/api/public/snipt/12437/
dynamic-django-mod_wsgi-hook-files
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a> <a href="#L-28">28</a> <a href="#L-29">29</a> <a href="#L-30">30</a> <a href="#L-31">31</a> <a href="#L-32">32</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a><span class="c1"># --- django.wsgi - in any project</span> </span><span id="L-2"><a name="L-2"></a><span class="kn">from</span> <span class="nn">some_common_module</span> <span class="kn">import</span> <span class="n">wsgi_helper</span> </span><span id="L-3"><a name="L-3"></a><span class="n">application</span> <span class="o">=</span> <span class="n">wsgi_helper</span><span class="o">.</span><span class="n">setup</span><span class="p">(</span><span class="n">__file__</span><span class="p">)</span> </span><span id="L-4"><a name="L-4"></a> </span><span id="L-5"><a name="L-5"></a> </span><span id="L-6"><a name="L-6"></a><span class="c1"># --- wsgi_helper.py - in some_common_module</span> </span><span id="L-7"><a name="L-7"></a><span class="kn">import</span> <span class="nn">os</span><span class="o">,</span> <span class="nn">sys</span> </span><span id="L-8"><a name="L-8"></a><span class="kn">import</span> <span class="nn">django.core.handlers.wsgi</span> </span><span id="L-9"><a name="L-9"></a> </span><span id="L-10"><a name="L-10"></a><span class="k">def</span> <span class="nf">setup</span><span class="p">(</span><span class="n">filename</span><span class="p">):</span> </span><span id="L-11"><a name="L-11"></a> <span class="n">project_root</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">sep</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">filename</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">sep</span><span class="p">)[:</span><span class="o">-</span><span class="mi">2</span><span class="p">])</span> </span><span id="L-12"><a name="L-12"></a> <span class="n">project_dir</span> <span class="o">=</span> <span class="bp">None</span> </span><span id="L-13"><a name="L-13"></a> </span><span id="L-14"><a name="L-14"></a> <span class="k">for</span> <span class="n">path</span> <span class="ow">in</span> <span class="n">os</span><span class="o">.</span><span class="n">listdir</span><span class="p">(</span><span class="n">project_root</span><span class="p">):</span> </span><span id="L-15"><a name="L-15"></a> <span class="c1"># Find each dir off the root, and check it for settings.py</span> </span><span id="L-16"><a name="L-16"></a> </span><span id="L-17"><a name="L-17"></a> <span class="n">path</span> <span class="o">=</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">join</span><span class="p">(</span><span class="n">project_root</span><span class="p">,</span> <span class="n">path</span><span class="p">)</span> </span><span id="L-18"><a name="L-18"></a> </span><span id="L-19"><a name="L-19"></a> <span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">isdir</span><span class="p">(</span><span class="n">path</span><span class="p">):</span> </span><span id="L-20"><a name="L-20"></a> <span class="nb">file</span> <span class="o">=</span> <span class="s2">&quot;&quot;</span><span class="o">.</span><span class="n">join</span><span class="p">([</span><span class="n">path</span><span class="p">,</span> <span class="n">os</span><span class="o">.</span><span class="n">sep</span><span class="p">,</span> <span class="s2">&quot;settings.py&quot;</span><span class="p">])</span> </span><span id="L-21"><a name="L-21"></a> <span class="k">if</span> <span class="n">os</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">exists</span><span class="p">(</span><span class="nb">file</span><span class="p">):</span> </span><span id="L-22"><a name="L-22"></a> <span class="c1"># We have found /project_name/settings.py</span> </span><span id="L-23"><a name="L-23"></a> <span class="n">project_dir</span> <span class="o">=</span> <span class="n">path</span> </span><span id="L-24"><a name="L-24"></a> <span class="n">os</span><span class="o">.</span><span class="n">environ</span><span class="p">[</span><span class="s1">&#39;DJANGO_SETTINGS_MODULE&#39;</span><span class="p">]</span> <span class="o">=</span> <span class="s1">&#39;</span><span class="si">%s</span><span class="s1">.settings&#39;</span> <span class="o">%</span> <span class="n">path</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="n">os</span><span class="o">.</span><span class="n">sep</span><span class="p">)[</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span> </span><span id="L-25"><a name="L-25"></a> </span><span id="L-26"><a name="L-26"></a> <span class="k">if</span> <span class="ow">not</span> <span class="n">project_dir</span><span class="p">:</span> </span><span id="L-27"><a name="L-27"></a> <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="s2">&quot;Could not find project settings file! Checked path: </span><span class="si">%s</span><span class="s2">&quot;</span> <span class="o">%</span> <span class="n">path</span><span class="p">)</span> </span><span id="L-28"><a name="L-28"></a> </span><span id="L-29"><a name="L-29"></a> <span class="k">if</span> <span class="n">project_root</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="p">:</span> <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">project_root</span><span class="p">)</span> </span><span id="L-30"><a name="L-30"></a> <span class="k">if</span> <span class="n">project_dir</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="p">:</span> <span class="n">sys</span><span class="o">.</span><span class="n">path</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">0</span><span class="p">,</span> <span class="n">project_dir</span><span class="p">)</span> </span><span id="L-31"><a name="L-31"></a> </span><span id="L-32"><a name="L-32"></a> <span class="k">return</span> <span class="n">django</span><span class="o">.</span><span class="n">core</span><span class="o">.</span><span class="n">handlers</span><span class="o">.</span><span class="n">wsgi</span><span class="o">.</span><span class="n">WSGIHandler</span><span class="p">()</span> </span></pre></div> </td></tr></table>
apache, django, hook, modwsgi