ErrLookup › pandas-dev/pandas
pandas-dev/pandas
Flexible and powerful data analysis / manipulation library for Python, providing labeled data structures similar to R data.frame objects, statistical functions, and much more · Python · 345 source files
Analyzed at 3b7651241d on 2026-08-11. 440 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| Disallowed deserialization of… | exception | critical | security, pyarrow, parquet, feather, pickle, rce, deserialization |
| Invalid function call | exception | error | pandas, eval, query, function-call, expression |
| " " is not a supported function | exception | error | pandas, eval, query, function-call, whitelist, mathops |
| Could not convert ' ' to a valid Python identifier. | exception | error | pandas, query, column-name, identifier, unicode, backtick |
| Function did not transform | exception | error | pandas, transform, shape-mismatch, valueerror |
| Start/End ordering requirement is violated at index | validation | error | pandas, numba, rolling, windowing, valueerror |
| ' ' nodes are not implemented | exception | error | pandas, eval, query, ast, not-implemented, unsupported-syntax |
| Cannot mask with non-boolean array containing NA / NaN… | exception | error | value-error, boolean-mask, nan, loc, object-dtype, indexing |
| Default 'empty' implementation is invalid for dtype= | exception | error | extension-array, not-implemented, dtype, missing-data, pandas |
| Columns not found | exception | error | key-error, column-selection, groupby, indexing, schema-mismatch |
| requires a Series, Index, ExtensionArray, np.ndarray or… | exception | error | pandas, algorithms, type-validation, typeerror, array-like |
| Invalid binary operator | exception | error | pandas, eval, binary-operator, expression, defensive |
| only a single expression is allowed | exception | error | pandas, eval, syntax-error, multiple-expressions, parser |
| arithmetic operations are not supported inside an HDFStore… | exception | error | pandas, hdfstore, pytables, where, arithmetic, maintenance-mode |
| Invalid Attribute context | exception | error | pytables, hdf5, ast, expression-evaluation, internal-guard |
| cannot subscript with | exception | error | pandas, hdfstore, pytables, subscript, where, indexing |
| Converting strings to | exception | error | pyarrow, dtype, parsing, from-sequence, notimplemented |
| Transform function failed | exception | error | pandas, transform, function-failure, shape-mismatch, valueerror |
| at least 'start' or 'end' should be specified if a 'period'… | exception | error | date-range, argument-validation, freq |
| 'numexpr' is not installed or an unsupported version… | exception | error | pandas, eval, numexpr, dependency, engine |
| {dtype} | exception | error | extension-array, not-implemented, view, dtype, pandas |
| values should be unique if codes is not None | validation | error | pandas, safe-sort, uniqueness, internal-api, valueerror |
| Unsupported type ' ' for ArrowExtensionArray | exception | error | pyarrow, constructor, type-validation, extension-array |
| UnaryOp only support invert type ops | exception | error | pandas, hdfstore, pytables, unary-operator, where |
| This classmethod must be defined in the concrete class | exception | error | extension-array, abstract-method, subclassing, api-contract |
| This method must be defined in the concrete class | exception | error | extension-array, subclassing, abstract-method, internals |
| Overflow in timedelta multiplication | exception | error | timedelta, overflow, multiplication, outofbounds |
| Value must be one of | validation | error | config, enum-validation, set-option |
| cannot add the type to a | exception | error | timedelta, offsets, typeerror, arithmetic |
| passing a filterable condition to a non-table indexer | exception | error | pandas, hdfstore, pytables, filter, where, fixed-format |
| Variables in expression | exception | error | numexpr-clobbering, eval, query, builtin-clash, column-naming |
| Only named functions are supported | exception | error | pandas, eval, function-call, type-error, unsupported-syntax |
| Overflow in timedelta division | exception | error | timedelta, overflow, division, outofbounds |
| pyarrow>= is required for PyArrow backed… | exception | error | pyarrow, import, environment, dependency, version |
| cannot supply both a tz and a timezone-naive dtype (i.e… | validation | error | datetime, timezone, dtype, construction, validation |
| The '@' prefix is not allowed in top-level eval… | exception | error | pandas, eval, locals, syntax-error, scope |
| unable to collapse Joint Filters | exception | error | pandas, hdfstore, pytables, filter, joint-filter, where |
| keyword error in function call | exception | error | pandas, eval, query, keyword-arguments, ast, defensive |
| Cannot compare of type to column | exception | error | pandas, hdfstore, pytables, type-mismatch, where, coercion |
| Cannot use .astype to convert from timezone-aware dtype to… | validation | error | datetime, timezone, astype, dtype, migration |
| Cannot generate range with | exception | error | date-range, overflow, out-of-bounds, periods |
| ' ' does not have duration components | exception | error | pyarrow, datetime-accessor, duration, arrow-extension, attribute-error |
| values should be numpy array. Use the 'pd.array' function… | exception | error | pandas, masked-array, numeric, constructor, dtype |
| Inferred time zone not equal to passed time zone | exception | error | datetime, timezone, date-range, assertion, construction |
| StringArray requires a sequence of strings or NaN. Got | exception | error | string-array, dtype, validation, nan, bug-in-message |
| freq= is incompatible with unit= . Use a lower freq or a… | exception | error | date-range, freq, unit, resolution |
| must contain a symbolic group name. | exception | error | pyarrow, string-accessor, regex, arrow-extension |
| values must be a 1D list-like | exception | error | pandas, masked-array, numeric, dtype, shape |
| Cannot return a copy of the target | exception | error | pandas, eval, target, copy, assignment |
| Cannot cast NaN value to Integer dtype. | exception | error | pandas, masked-array, numeric, nan, casting, nullable |
| key must be an int or slice, got | exception | error | accessor, list, indexing, pyarrow |
| 'values' must be a NumPy array, not | exception | error | pandas, numpy-extension-array, constructor, dtype |
| multi-line expressions are only valid in the context of… | exception | error | pandas, eval, multiline, target, argument-error |
| pd.api.extensions.take requires a numpy.ndarray… | exception | error | pandas, take, api-extensions, type-validation, typeerror |
| cannot diff on axis= | validation | error | pandas, diff, extension-array, axis, valueerror |
| Cannot assign expression output to target | exception | error | pandas, eval, target, assignment, type-error |
| Is not a partition because intersection is not null. | exception | error | sparse, scipy, coo, multiindex, partition |
| Value must be an instance of | validation | error | config, type-validation, set-option |
| empty separator | exception | error | string, pyarrow, str-accessor, validation |
| are different [left]: [right] | exception | error | testing, assertions, data-comparison |
| left hand side of an assignment must be a single resolvable… | exception | error | pandas, eval, assignment, resolver, syntax-error |
| Cannot modify read-only array | exception | error | read-only, sort, copy-on-write, mutation |
| cannot use an invert condition when passing to numexpr | exception | error | pandas, hdfstore, pytables, numexpr, inversion, where |
| to_concat must have the same dtype | exception | error | concat, dtype-mismatch, datetime, timedelta, pyarrow |
| Lengths must match | exception | error | datetimelike, comparison, length-mismatch, broadcasting |
| is both the pipe target and a keyword argument | exception | error | value-error, pipe, kwargs, api-misuse |
| expected dimension <= 1 data | exception | error | sparse, numpy, dimension, shape-validation |
| Cannot compare tz-naive and tz-aware datetime-like objects. | validation | error | datetime, timezone, comparison, tz-naive |
| Invalid value ' ' for dtype | exception | error | pandas, numpy-extension-array, setitem, casting, lossy |
| ' ' with dtype does not support operation | exception | error | extension-array, reduction, type-error, pandas |
| DateOffset is intra-day and cannot be applied to… | exception | error | datetime, dateoffset, pyarrow, type-validation, arithmetic |
| Overflow in int64 multiplication | exception | error | timedelta, overflow, multiplication, outofbounds, int64 |
| Period type does not support | exception | error | pandas, period, groupby, dtype, reduction |
| name is not defined | exception | error | pandas, hdfstore, pytables, query, data-column, where |
| Only np.ndarray, ExtensionArray, and Index objects are… | exception | error | pandas, safe-sort, internal-api, type-validation, typeerror |
| Offset did not decrement date | validation | error | datetime, date-range, offset, infinite-loop-guard |
| Only list-like objects or None are allowed to be passed to… | exception | error | pandas, safe-sort, internal-api, codes, type-validation, typeerror |
| interpolate is not implemented for dtype= | exception | error | pyarrow, interpolate, decimal, notimplemented |
| _from_scalars should only raise ValueError or TypeError… | validation | warning | extensionarray, api-contract, subclass-author, casting, pointwise |
| check_like must be False if check_index is False | validation | error | testing, argument-conflict, assertions |
| Operation does not support axis=1 | exception | error | pandas, apply, axis, string-dispatch, valueerror |
| Column ' ' not found in given DataFrame. Hint: did you mean… | exception | error | value-error, col, expression, column-not-found, deferred, schema-mismatch |
| Expected type , found instead | exception | error | testing, type-mismatch, assertions |
| bins argument only works with numeric data. | validation | error | pandas, value-counts, bins, dtype, typeerror |
| `axis` must be fewer than the number of dimensions | validation | error | numpy-compat, axis-validation, reductions |
| Invalid parser ' ' passed, valid parsers are | exception | error | pandas, eval, parser, validation, argument-error |
| Multi-line expressions are only valid if all expressions… | exception | error | pandas, eval, multiline, assignment, validation |
| ' ' object is not iterable | exception | error | accessor, list, iteration, pyarrow |
| Pandas requires version | exception | error | dependencies, version-mismatch, optional-deps |
| does not implement __setitem__. | exception | error | extension-array, setitem, not-implemented, subclassing |
| 'values' is not ordered, please explicitly specify the… | exception | error | categorical, constructor, ordered, factorize, typeerror |
| PeriodArray does not allow floating point in construction | exception | error | pandas, period, constructor, float, ordinal |
| Cannot add or subtract timedelta64[ns] dtype from | exception | error | pandas, period, arithmetic, timedelta, freq |
| Cannot round dtype as it is non-numeric | exception | error | extension-array, type-error, rounding, pandas |
| cannot safely cast non-equivalent | validation | error | casting, integer-array, nullable-integer, type-coercion |
| name_or_index must be an int, str, bytes… | exception | error | accessor, struct, field, pyarrow, argument-validation |
| You cannot add any new attribute | exception | error | base, attribute, frozen, attributeerror, immutable |
| cannot combine transform and aggregation operations | exception | error | pandas, agg, transform, nested-result, valueerror |
| Cannot divide by | exception | error | timedelta, division, typeerror, reverse-division |
| [datetimelike_compat=True] | exception | error | testing, datetime, dtype-compat |