-
```
>>> import pandas as pd
>>> pd.eval('not True')
-2
```
Not sure if this was intentional, since `'not'` maps to `op.invert` in https://github.com/pydata/pandas/blob/master/pandas/computation/ops.p…
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### Pandas version checks
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- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/i…
-
### Pandas version checks
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- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/i…
-
### Pandas version checks
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```
df=pd.read_excel(xl_file, sheet_name=xl_sheet,header=[18,19], usecols='B,D:J,L')
```
#### Problem description
df=pd.read_excel(xl_file, sheet_name=xl_sheet,header=[18,19], usecols='B,D…
-
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsn…
-
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsn…
-
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsn…
-
### Pandas version checks
- [X] I have checked that this issue has not already been reported.
- [X] I have confirmed this bug exists on the [latest version](https://pandas.pydata.org/docs/whatsnew/i…
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I found an realy bad bug. The backupscript for the database stop working when an MyISAM Table is broken. One of these 4 tables on MyISAM: help, tabData Import, tabError Log, __global_search
In my c…