model.metabolites.M_thf_LSQBKTc_RSQBKT.summary()

[Rahmaabubakr]

Hello COBRApy Community,

When i used this command

model.metabolites.M_thf_LSQBKTc_RSQBKT.summary()

I got this error

KeyError Traceback (most recent call last)
File ~/RA/lib/python3.10/site-packages/cobra/core/dictlist.py:525, in DictList.getattr(self, attr)
524 try:
--> 525 return DictList.get_by_id(self, attr)
526 except KeyError:

File ~/RA/lib/python3.10/site-packages/cobra/core/dictlist.py:73, in DictList.get_by_id(self, id)
72 """Return the element with a matching id."""
---> 73 return list.getitem(self, self._dict[id])

KeyError: 'M_thf_LSQBKTc_RSQBKT'

During handling of the above exception, another exception occurred:

AttributeError Traceback (most recent call last)
/home/rahma/RA/habolla.ipynb Cell 120 line 1
----> 1 model.metabolites.M_thf_LSQBKTc_RSQBKT.summary()

File ~/RA/lib/python3.10/site-packages/cobra/core/dictlist.py:527, in DictList.getattr(self, attr)
525 return DictList.get_by_id(self, attr)
526 except KeyError:
--> 527 raise AttributeError(f"DictList has no attribute or entry {attr}")

AttributeError: DictList has no attribute or entry M_thf_LSQBKTc_RSQBKT

[cdiener]

That just means there is no metabolite with that name in the model. You can print a list of all metabolites with print(list(models.metabolites)).

[Midnighter]

Also worth mentioning, that you can query metabolites by name or other attributes.