Basic Examples (3) 

Temporarily use an empty context:

In[1]:=

Out[1]=

The $ContextPath is also changed:

In[2]:=

Out[2]=

The values of $Context and $ContextPath are restored after evaluation of ContextModule:

In[3]:=

Out[3]=

In[4]:=

Out[4]=

Applications (2) 

Use Put to write an expression into a file with fully qualified symbol names:

In[5]:=

In[6]:=

Apply Compress to an expression so that it is not dependent on the current context:

In[7]:=

Out[8]=

This ensures that contexts are preserved when uncompressed in another session:

In[9]:=

Out[9]=

Without ContextModule, the symbols would take on whatever the current context is when uncompressed:

In[10]:=

Out[10]=

In[11]:=

Out[11]=

Properties and Relations (2) 

ContextModule always uses an empty context:

In[12]:=

Out[12]=

ContextModule is similar to Module in the sense that symbols created during the evaluation are not permanent:

In[13]:=

Out[13]=

In[14]:=

Out[14]=

In[15]:=

Out[15]=

In[16]:=

Out[16]=

Possible Issues (2) 

Any symbols created in the temporary context are removed when the evaluation completes:

In[17]:=

Out[17]=

This also restores Contexts:

In[18]:=

Out[20]=

In[21]:=

Out[21]=