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Are lists thread-safe?

...ERROR Exception in thread Thread-63: Traceback (most recent call last): File "/Users/zup/.pyenv/versions/3.6.8/lib/python3.6/threading.py", line 916, in _bootstrap_inner self.run() File "/Users/zup/.pyenv/versions/3.6.8/lib/python3.6/threading.py", line 864, in run self._target(*self._a...
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How to show multiline text in a table cell

...g to excel), large #s of columns and rows balloon the size of the exported file and cause excel to crash upon reading the file. (odd, I know). Has anyone else seen this or have an idea for a solution? – JoeBrockhaus Aug 28 '13 at 19:20 ...
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Replacing blank values (white space) with NaN in pandas

... If you are exporting the data from the CSV file it can be as simple as this : df = pd.read_csv(file_csv, na_values=' ') This will create the data frame as well as replace blank values as Na ...
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How to know/change current directory in Python shell?

... File "<stdin>", line 1 os.system('cd c:\Users\Ajeya\Documents\') ^ SyntaxError: EOL while scanning string literal – AAI Sep 4 '16 at...
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Difference between author and committer in Git?

... show 'commit date' go low level and show the entire commit data: git cat-file -p HEAD How to set the committer date of a new commit? git commit --date only sets the author date: for the committer date the best I could find was with the environment variable: GIT_COMMITTER_DATE='2000-01-01T00:0...
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Sleep until a specific time/date

...timer_list by user!! Under recent Linux kernel, you will find a variables file named `/proc/timer_list` where you could read an `offset` and a `now` variable, in **nanoseconds**. So we may compute sleep time to reach the *very top* desired time. (I wrote this to generate and track specific events o...
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What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?

...and return nothing, meaning that you can't redirect the output, e.g., to a file. ---- script a.ps1 ---- write-host "hello" Now run in PowerShell: PS> .\a.ps1 > someFile.txt hello PS> type someFile.txt PS> As seen, you can't redirect them into a file. This maybe surprising for someo...
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Installing specific package versions with pip

... MySQL_python pip install -Iv http://sourceforge.net/projects/mysql-python/files/mysql-python/1.2.2/MySQL-python-1.2.2.tar.gz/download share | improve this answer | follow ...
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UICollectionView's cellForItemAtIndexPath is not being called

... but it appears your missing your delegate and data source. In your header file, make sure you have added these: <UICollectionViewDelegate, UICollectionViewDataSource> and in your viewDidLoad method add this: self.myCollectionView.delegate = self; self.myCollectionView.dataSource = self; ...
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Purge Kafka Topic

... Remember to add line delete.topic.enable=true in file config/server.properties, as the warning printed by the mentioned command says Note: This will have no impact if delete.topic.enable is not set to true. – Patrizio Bertoni Aug 19 '1...