Hi,

The problem is indeed that the code fail to find the f2py executable on your machine.
You can specify that path manually in the input/mg5_configuration.txt configuration file.

Cheers,

Olivier

> On Sep 25, 2016, at 21:42, Valentin Hirschi <email address hidden> wrote:
> 
> As stated by the following toggle information:
> 
> reweight = Not available (requires NumPy)|
> 
> You must have installed numPy and f2py in order to have the reweight
> functionality enabled. Is this the case?
> 
> On Sun, Sep 25, 2016 at 8:43 AM, Ramkrishna <email address hidden>
> wrote:
> 
>> Public bug reported:
>> 
>> Hi,
>> 
>> I am trying to enable the reweight module in MadGraph version
>> 2_5_0_beta2 but I am not able to do so.
>> 
>> I tried to enter the two commands to do, without success. Below I am
>> pasting the full output of it.
>> 
>> ===============================================================
>> The following switches determine which programs are run:
>> /-----------------------------------------------------------
>> ---------------------------------------\
>> |  1. Choose the shower/hadronization program:
>> shower = Not installed    |
>> |  2. Choose the detector simulation program:
>> detector = Not installed    |
>> |  3. Run an analysis package on the events generated:
>> analysis = No analysis tool interfaced to MG5aMC.|
>> |  4. Decay particles with the MadSpin module:
>> madspin = OFF              |
>> |  5. Add weights to events for different model hypothesis:
>> reweight = Not available (requires NumPy)|
>> \-----------------------------------------------------------
>> ---------------------------------------/
>>  Either type the switch number (1 to 5) to change its setting,
>>  Set any switch explicitly (e.g. type 'madspin=ON' at the prompt)
>>  Type 'help' for the list of all valid option
>>  Type '0', 'auto', 'done' or just press enter when you are done.
>> [0, auto, done, madspin=ON, madspin=OFF, madspin, parton, 3][60s to
>> answer]
>>> 5
>> 5 not valid argument. Valid argument are in (auto,done,madspin=ON,madspin=
>> OFF,madspin,parton,0,3).
>> please retry
>>> reweight = ON
>> reweight = ON not valid argument. Valid argument are in
>> (auto,done,madspin=ON,madspin=OFF,madspin,parton,0,3).
>> please retry
>>> help
>> Here is the list of all valid options:
>>  auto
>>  done
>>  madspin=ON
>>  madspin=OFF
>>  madspin
>>  parton
>>  0
>>  3
>> Here is the list of command available:
>>  help
>> 
>> ==========================================================
>> 
>> So, I see that reweight command is also not shown in the help command
>> list. Is it a bug or I need to something else to enable the reweight
>> cards. Also, I checked and see that NumPy is there which is required by
>> the reweight module. So, I think it should not give me this.
>> 
>> Please suggest how I can fix this?
>> 
>> with regards,
>> Ram
>> 
>> ** Affects: mg5amcnlo
>>     Importance: Undecided
>>         Status: New
>> 
>> 
>> ** Tags: reweight v2-5-0beta2
>> 
>> --
>> You received this bug notification because you are subscribed to
>> MadGraph5_aMC@NLO.
>> Matching subscriptions: all_bugs_subscription, full_bug_report
>> https://bugs.launchpad.net/bugs/1627513
>> 
>> Title:
>>  reweight module not enabling in version 2_5_0_beta2
>> 
>> Status in MadGraph5_aMC@NLO:
>>  New
>> 
>> Bug description:
>>  Hi,
>> 
>>  I am trying to enable the reweight module in MadGraph version
>>  2_5_0_beta2 but I am not able to do so.
>> 
>>  I tried to enter the two commands to do, without success. Below I am
>>  pasting the full output of it.
>> 
>>  ===============================================================
>>  The following switches determine which programs are run:
>>  /-----------------------------------------------------------
>> ---------------------------------------\
>>  |  1. Choose the shower/hadronization program:
>> shower = Not installed    |
>>  |  2. Choose the detector simulation program:
>> detector = Not installed    |
>>  |  3. Run an analysis package on the events generated:
>> analysis = No analysis tool interfaced to MG5aMC.|
>>  |  4. Decay particles with the MadSpin module:
>> madspin = OFF              |
>>  |  5. Add weights to events for different model hypothesis:
>> reweight = Not available (requires NumPy)|
>>  \-----------------------------------------------------------
>> ---------------------------------------/
>>    Either type the switch number (1 to 5) to change its setting,
>>    Set any switch explicitly (e.g. type 'madspin=ON' at the prompt)
>>    Type 'help' for the list of all valid option
>>    Type '0', 'auto', 'done' or just press enter when you are done.
>>   [0, auto, done, madspin=ON, madspin=OFF, madspin, parton, 3][60s to
>> answer]
>>> 5
>>  5 not valid argument. Valid argument are in
>> (auto,done,madspin=ON,madspin=OFF,madspin,parton,0,3).
>>  please retry
>>> reweight = ON
>>  reweight = ON not valid argument. Valid argument are in
>> (auto,done,madspin=ON,madspin=OFF,madspin,parton,0,3).
>>  please retry
>>> help
>>  Here is the list of all valid options:
>>    auto
>>    done
>>    madspin=ON
>>    madspin=OFF
>>    madspin
>>    parton
>>    0
>>    3
>>  Here is the list of command available:
>>    help
>> 
>>  ==========================================================
>> 
>>  So, I see that reweight command is also not shown in the help command
>>  list. Is it a bug or I need to something else to enable the reweight
>>  cards. Also, I checked and see that NumPy is there which is required
>>  by the reweight module. So, I think it should not give me this.
>> 
>>  Please suggest how I can fix this?
>> 
>>  with regards,
>>  Ram
>> 
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/mg5amcnlo/+bug/1627513/+subscriptions
>> 
> 
> 
> --
> Valentin
> 
> --
> You received this bug notification because you are subscribed to
> MadGraph5_aMC@NLO.
> https://bugs.launchpad.net/bugs/1627513
> 
> Title:
>  reweight module not enabling in version 2_5_0_beta2
> 
> Status in MadGraph5_aMC@NLO:
>  New
> 
> Bug description:
>  Hi,
> 
>  I am trying to enable the reweight module in MadGraph version
>  2_5_0_beta2 but I am not able to do so.
> 
>  I tried to enter the two commands to do, without success. Below I am
>  pasting the full output of it.
> 
>  ===============================================================
>  The following switches determine which programs are run:
>  /--------------------------------------------------------------------------------------------------\
>  |  1. Choose the shower/hadronization program:                           shower = Not installed    |
>  |  2. Choose the detector simulation program:                          detector = Not installed    |
>  |  3. Run an analysis package on the events generated:                 analysis = No analysis tool interfaced to MG5aMC.|
>  |  4. Decay particles with the MadSpin module:                          madspin = OFF              |
>  |  5. Add weights to events for different model hypothesis:            reweight = Not available (requires NumPy)|
>  \--------------------------------------------------------------------------------------------------/
>    Either type the switch number (1 to 5) to change its setting,
>    Set any switch explicitly (e.g. type 'madspin=ON' at the prompt)
>    Type 'help' for the list of all valid option
>    Type '0', 'auto', 'done' or just press enter when you are done.
>   [0, auto, done, madspin=ON, madspin=OFF, madspin, parton, 3][60s to answer]
>> 5
>  5 not valid argument. Valid argument are in (auto,done,madspin=ON,madspin=OFF,madspin,parton,0,3).
>  please retry
>> reweight = ON
>  reweight = ON not valid argument. Valid argument are in (auto,done,madspin=ON,madspin=OFF,madspin,parton,0,3).
>  please retry
>> help
>  Here is the list of all valid options:
>    auto
>    done
>    madspin=ON
>    madspin=OFF
>    madspin
>    parton
>    0
>    3
>  Here is the list of command available:
>    help
> 
>  ==========================================================
> 
>  So, I see that reweight command is also not shown in the help command
>  list. Is it a bug or I need to something else to enable the reweight
>  cards. Also, I checked and see that NumPy is there which is required
>  by the reweight module. So, I think it should not give me this.
> 
>  Please suggest how I can fix this?
> 
>  with regards,
>  Ram
> 
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/mg5amcnlo/+bug/1627513/+subscriptions