I want to install Python 2.7.12 but It shows following error.
There is a problem with this window installer package. A program required for this install to complete could not be run.
I saw one youtube video (https://www.youtube.com/watch?v=KikshWVWhzg) and so I provide full access to system and User. Even then, the same problem occurs.
How to solve this problem?
I solved this problem by my own.
Actually what happens is: In past, I installed Python 2.7.10 and by mistake, I deleted python27 file from C drive. But python remains installed in computer and when I tried to uninstall it, It shows the same error as above. So to uninstall this,
first I download similar python file (python2.7.10ci) version and try to install it. And you see it got installed. Due to this a file get generated in C drive with name python27 and now I can uninstalled python which I installed a long time back.
After uninstalling old python2.7.10, I right click on python 2.7.10ci (in control panel ) and choose repair. Due to this again a file generated with python27 and now I uninstalled this too easily.
After doing all this, I downloaded python 2.7.12 and try to install. And I able to install this without any error.
I am trying to install wxpython on mac os. I have already tried following solution. I have already enables software installation from all sources
a) Downloaded the binary for mac and tried to install it. It says no software found to install at the last step.
b) I tried using brew to install. The brew command works find but when when I tried import wx it says no module found.
Can you specify how to get rid of this error? My mac version is 10.11.5 I am using python 2.7
Try using the installer found here: https://wxpython.org/snapshots/. It is a current (as of 2 weeks ago) snapshot of the code, modified to use the newer Installer Package format.
I use Windows 7 and Python 3.4 (32bit). I installed PyQt5 and proceeded watching tutorials on how to use the module. However, the tutorial used PyQt4 instead and I faced problems. So, I decided to switch from PyQt5 to the older, PyQt4. I installed PyQt5 using the Windows Installers.
When I proceeded to install PyQt4, it gives me this error message: A copy of PyQt5 for Python v3.4 is installed in C:\Python34 and must be uninstalled first.
After checking the documentation, it said that we couldn't have both PyQt4 and PyQt5 installed at the same time, unless we built from source. I'm not sure how to build from source on Windows but after trying(extracting sip, running configure.py; extracting PyQt4, running configure-ng.py/configure.py) I still get a bunch of errors namely:
something Qmake related
Import Error: No module named sipconfig.
I gave up trying to build from source and instead just wanted to uninstall PyQt5 so I could use PyQt4. I deleted the sip folder and PyQt4 from the botched installation first. Then, I deleted PyQt5 itself from site-packages as well as qt.conf in C:\Python34.
Running the binaries for PyQt4 still gives me the PyQt5 is installed error message. How do I uninstall PyQt5 completely so that I can install PyQt4? Thanks.
I installed PyQt5 again using the installer and the used the uninstall.exe provided in the PyQt5 folder in site-packages. I hope this solution is helpful for others such as those here.
Uninstall using uninstall.exe which is provided in your PyQt4/5 folder in site-packages. If you already deleted the folder, just reinstall it with the .exe you first used and try again.
Try:
pip3 uninstall pyqt5
It worked seamlessly for me.
I have recently tried to install Python 3.4 as an alternative installation on my system in an attempt to familiarise myself before migrating code. My main Python installation is 2.7.6.
I tried the 64 bit installer for Windows, but it came up with an error message
There is a problem with this Windows Installer package. A program run as part of the setup did not finish as expected. Contact your support personnel or package vendor.
After this the install is rolled back (from the point shown below):
I have eventually found a solution to this posted below and decided to share in case anyone else was having the same issue.
After some looking online I found (here) that the issue was related to conflicting pip installs (I have a version already installed for Python 2.7 and apparently this is not compatible with the version that ships with Python 3.4.
To get around this issue I simply de-selected pip from the install options shown below and the install went ahead smoothly:
Run installer again and select PIP installation.
If the PIP fails to install with the same error, you may want to check environmental variables using a tool like http://eveditor.com/ which enables to check whether they are valid. If you had another version installed before, you most likely have wrong PYTHONHOME and PYTHONPATH variables. Fix them by setting them to relevant paths. e.g. PYTHONHOME=C:\python27 and PYTHONPATH=c:\python27\Lib
You will then be able to run and install PIP.
My issue was that I had a PYTHON_HOME or PYTHON_SOMETHING environment variable set. After removing the environment variable, the installation worked perfectly.
What worked for me, strangely enough, was the "Microsoft Program Install and Uninstall troubleshooter"
The "deselect pip" solution did not work for me.
My Python 3.4.1 install was failing with the same "A program run as part of the setup did not finish as expected" error. I tried both installing it on top of Python 3.4.0 and installing it in a new folder, but got the same error. I tried uninstalling Python 3.4.0 first, but got the error during the uninstall, as well.
I ran that Microsoft utility, which helped me uninstall 3.4.0, and was then able to install 3.4.1 cleanly. The utility has options for both problematic installs and uninstalls, so it may help even if you're doing a new install, not an upgrade.
I'm running 64-bit Windows 7, but was working with 32-bit Python versions.
I had similar issues with Python 3.4x on Windows 8.1. Even after a successful install, the uninstaller would fail in the same way. Ultimately, "Method 1" at the MS forum solved this for me when I ran Microsoft's (Un)installer Fix It.
I also had the problem that pip couldn't be installed like #ChrisPosser.
So I deselected pip and the installation went fine. afterwards I restarted the setup, chose "change python" and installed pip. now everything worked like expected.
If you have any problems with windows installers I recommend activating the verbose log like this:
msiexec /i python-2.7.10-1.609.2.msi /lv install-python.log
From the logs I could see that it was the pip install, which was not working.
Yes, I faced the same issue, and was working on this for the past one hour. Was trying to uninstall the Python 3.4.1 from the control panel -> uinstall program -> add/remove program, but was facing issues.
This trick worked for me:
Manually deleted the 3.4.1 folder, which was present in my C folders after I installed the 3.4.1
Then I followed these steps:
-> Went to Regedit.exe, checked in both HKEY_CURRENT_USER, HKEY_LOCAL SOFTWARE Folder, and deleted the Python folders there.
-> windows 8 -> Downloads -> 3.4.1 msi setup (Glad I never deleted it)
-> Right clicked on the msi setup and choose the repair option
-> The repair would re install the Python 3.4.1
-> After this, I un-installed the Python 3.4.1
-> Then I deleted the 3.4.1 msi setup.
Rebooted the system, and now, there is no instance of Python 3.4.1 in my system.
According to me when environment variables containing name 'Python' are created they somehow becomes related with python. I was unable to open idle (GUI PUTHON) and to uninstall it . Deleting a variable named 'PYTHON PATH' solved my all python related problems.
I had 3.7.4 and wanted to move to 2.7.13.
I uninstalled 3.7.4
Tried to install 2.7.13 but got the same error.
There was a 2.7.10 installer(not msi) also present, uninstalling which gave the same error.
So I downloaded 2.7.10 msi, installed it, and then just installed 2.7.13 from the downloaded msi and it worked fine. This overwriting worked because the major version i.e. 2.7 was same for both.
I don't know if this is helpful but after the hours I spent on this, I wanted to write out what worked for me.
Yup, I have already installed another version of python. I have uninstalled them using Program features. But still the same issue persisted because of the folder which was present in my C: drive. After deleting them manually, the installation got completed without errors
I faced this issue because of 2 conflicting versions of 7zip. Removing them both and installing just one fixed this issue.
I had python3.4 installed, then added 3.5, and deleted 3.4. That was a mistake. In trying to get a library to work, I had to go back to 3.4. I uninstalled 3.5, but couldn't uninstall 3.4 (folder deleted).
I ended up searching the registry in rededt32 for "python". There was a Guid folder with a number of entries that had c:\python34 and one more related to the same folder that I deleted. After this, the install worked correctly.
Windows 10.
Mine was linked to having installed an older version in the past, only for my own user account. I got around it by telling the installer to install Python for all users.
For me none of the suggested fixes worked for me. However checking the option "Install just for me" instead of "Install for all users" (Windows 10) worked for me. So this might be another option to try.
I am new to Mac, have always used windows and I am confused on how to install wxPython. I downloaded the .dmg file from the website, and it contained three files:
a pkg file, a readme, and an uninstall.py
I opened the pkg file, went through the steps, and Im not sure where it installed after it said "Installation Complete"
Also, I did the import wx in idle, which caused a stacktrace error.
Thanks.
From personal experience on installing wxPython on both Windows 7 and Mac OSX, I found restarting the computer helps out after installation and stacktrace errors appearing in the Shell upon 'import wx'. Sounds simple enough, but it worked for me. If no errors appear after 'import wx', that means wxPython installed correctly. To add to bouke's answer above, the current way to install Python 2.7 via homebrew in Terminal:
brew install python
To install wxPython:
brew install wxpython
At least for development, I would suggest to install (python and) wx using homebrew. It will install version 2.9 and you're ensured that Apple-provided system libraries remain untouched.