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.. _errors:
Errors
------
The different types of errors defined in Gfapy are summarized in the
following table. All exception raised in the library are subclasses of
`Error`. Thus, ``except gfapy.Error`` can be use to catch
all library errors.
+-----------------------+-------------------------------+---------------------------------+
| Error | Description | Examples |
+=======================+===============================+=================================+
| `VersionError` | An unknown or wrong version | "GFA0"; or GFA1 in GFA2 context |
| | is specified or implied | |
+-----------------------+-------------------------------+---------------------------------+
| `ValueError` | The value of an object is | a negative position is used |
| | invalid | |
+-----------------------+-------------------------------+---------------------------------+
| `TypeError` | The wrong type has been used | Z instead of i used for VN tag; |
| | or specified | Hash for an i tag |
+-----------------------+-------------------------------+---------------------------------+
| `FormatError` | The format of an object is | a line does not contain the |
| | wrong | expected number of fields |
+-----------------------+-------------------------------+---------------------------------+
| `NotUniqueError` | Something should be unique | duplicated tag name or line |
| | but is not | identifier |
+-----------------------+-------------------------------+---------------------------------+
| `InconsistencyError` | Pieces of information collide | length of sequence and LN tag |
| | with each other | do not match |
+-----------------------+-------------------------------+---------------------------------+
| `RuntimeError` | The user tried to do | editing from_segment field in |
| | something which is not | connected links |
| | allowed | |
+-----------------------+-------------------------------+---------------------------------+
| `ArgumentError` | Problem with the arguments of | wrong number of arguments in |
| | a method | dynamically created method |
+-----------------------+-------------------------------+---------------------------------+
| `AssertionError` | Something unexpected happened | there is a bug in the library or|
| | | the library has been used in |
| | | an unintended way |
+-----------------------+-------------------------------+---------------------------------+
|
