title: Python dictionary throws invalid syntax
body: <p>Why does this code throw an invalid syntax error? I am pretty sure this ran fine about three months ago. Has something changed in the Python language in regards to dictionaries? The error is as follows:</p>
  
  <pre><code>File "code.py", line 4
  'den'{'adm':2.4,'den':0,'ear':3.5,'edi':3.6,'eug':1.6,'fra':3.0,'thu':3.1,\
  SyntaxError: invalid syntax
  </code></pre>
  
  <p>If I comment out lines 4 and 5 the error points to line 7. The error always references the second single quote character. In line four it points to the <code>'</code> after the N in "<code>den</code>".</p>
  
  <p>Here is the code:</p>
  
  <pre><code>milevalue = {'adm':{'adm':0,'den':2.4,'ear':3,'edi':3.2,'eug':2.6,'fra':2.1,'thu':1.2,\
  'hor':3.4,'lon':1.5,'rid':7.7,'hig':1.8,'tho':5.5,'was':1.8,'aca':0.8,'cen':.9}\
  \
  'den':{'adm':2.4,'den':0,'ear':3.5,'edi':3.6,'eug':1.6,'fra':3.0,'thu':3.1,\
  'hor':1.6,'lon':1.4,'rid':7.4,'hig':2.3,'tho':5.8,'was':0.7,'aca':2.6,'cen':1.8},\
  \
  'ear':{'adm':3,'den':3.5,'ear':0,'edi':0.1,'eug':1.9,'fra':0.9,'thu':2.1,\
  'hor':2.9,'lon':4.4,'rid':4.8,'hig':1.4,'tho':2.7,'was':3.2,'aca':2.4,'cen':2.5},\
  \
  'edi':{'adm':3.2,'den':2.4,'ear':0.1,'edi':0,'eug':2.0,'fra':1.1,'thu':2.3,\
  'hor':2.7,'lon':4.5,'rid':4.7,'hig':1.5,'tho':2.5,'was':3.4,'aca':2.5,'cen':2.6},\
  \
  'eug':{'adm':2.6,'den':1.6,'ear':1.9,'edi':2.0,'eug':0,'fra':1.8,'thu':3.0,\
  'hor':1,'lon':2.6,'rid':6.4,'hig':1.4,'tho':4.3,'was':1.4,'aca':2.5,'cen':1.7},\
  \
  'fra':{'adm':2.1,'den':3.0,'ear':0.9,'edi':1.1,'eug':1.8,'fra':0,'thu':1.2,\
  'hor':2.8,'lon':3.4,'rid':5.7,'hig':0.4,'tho':3.6,'was':2.3,'aca':1.5,'cen':1.6},\
  \
  'thu':{'adm':1.2,'den':3.1,'ear':2.1,'edi':2.3,'eug':3.0,'fra':1.2,'thu':0,\
  'hor':4,'lon':2.9,'rid':7.1,'hig':1.6,'tho':5.1,'was':2.4,'aca':0.6,'cen':1.6},\
  \
  'hor':{'adm':3.4,'den':1.6,'ear':2.9,'edi':2.7,'eug':1,'fra':2.8,'thu':4,\
  'hor':0,'lon':2.7,'rid':6.1,'hig':2.4,'tho':4.4,'was':2,'aca':3.5,'cen':2.8},\
  \
  'lon':{'adm':1.5,'den':1.4,'ear':4.4,'edi':4.5,'eug':2.6,'fra':3.4,'thu':2.9,\
  'hor':2.7,'lon':0,'rid':8.6,'hig':3.5,'tho':7.1,'was':1.6,'aca':2.5,'cen':2.5},\
  \
  'rid':{'adm':7.7,'den':7.4,'ear':4.8,'edi':4.7,'eug':6.4,'fra':5.7,'thu':7.1,\
  'hor':6.1,'lon':8.6,'rid':0,'hig':5.9,'tho':2.4,'was':7.8,'aca':6.9,'cen':7},\
  \
  'hig':{'adm':1.8,'den':2.3,'ear':1.4,'edi':1.5,'eug':1.4,'fra':0.4,'thu':1.6,\
  'hor':2.4,'lon':3.5,'rid':5.9,'hig':0,'tho':3.8,'was':1.9,'aca':1.3,'cen':1.1},\
  \
  'tho':{'adm':5.5,'den':5.8,'ear':2.7,'edi':2.5,'eug':4.3,'fra':3.6,'thu':5.1,\
  'hor':4.4,'lon':7.1,'rid':2.4,'hig':3.8,'tho':0,'was':5.9,'aca':4.8,'cen':4.9},\
  \
  'was':{'adm':1.8,'den':0.7,'ear':3.2,'edi':3.4,'eug':1.4,'fra':2.3,'thu':2.4,\
  'hor':2,'lon':1.6,'rid':7.8,'hig':1.9,'tho':5.9,'was':0,'aca':1.9,'cen':1.1}
  \
  'aca':{'adm':0.8,'den':2.6,'ear':2.4,'edi':2.5,'eug':2.5,'fra':1.5,'thu':0.6,\
  'hor':3.5,'lon':2.5,'rid':6.9,'hig':1.3,'tho':4.8,'was':1.9,'aca':0,'cen':0.9}
  \
  'cen':{'adm':0.9,'den':1.8,'ear':2.5,'edi':2.6,'eug':1.7,'fra':1.6,'thu':1.6,\
  'hor':2.8,'lon':2.5,'rid':7,'hig':1.1,'tho':4.9,'was':1.1,'aca':0.9,'cen':0}}
  </code></pre>